Lithium carbonate production drying device capable of preventing flying of lithium carbonate
By designing and coordinating components such as support frames and drying chambers, uniform conveying and hot air drying of lithium carbonate are achieved, solving the problem of lithium carbonate powder flying around, improving drying efficiency and quality, and ensuring the safety and efficiency of the production process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-07
- Publication Date
- 2026-04-14
AI Technical Summary
Existing drying equipment used in lithium carbonate production often results in lithium carbonate powder flying around during the drying process, leading to health hazards and low drying efficiency.
The system employs a combination of components such as a support frame, drying chamber, feeding pipe, filter screen, air supply pipe, blower, and servo motor. It conveys lithium carbonate via a screw and dries it with hot air. Combined with an automatic cleaning system for the dust filter cloth and brush plate, it prevents powder from flying and improves heat exchange efficiency.
It effectively prevents lithium carbonate from flying around, improves drying efficiency and quality, and ensures the safety and efficiency of the production process.
Smart Images
Figure CN224121644U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lithium carbonate production technology, specifically to a drying device for lithium carbonate production that prevents lithium carbonate from flying away. Background Technology
[0002] Lithium carbonate is an inorganic compound with lower thermal stability than carbonates of other elements in the same group of the periodic table. It does not deliquesce in air and can be obtained by adding sodium carbonate to lithium sulfate or lithium oxide solutions. Lithium carbonate is used in the manufacture of lithium compounds, enamel, and glass. It is a raw material for the production of lithium compounds and metallic lithium and can be used as an electrolyte additive in aluminum smelting.
[0003] Existing drying equipment for lithium carbonate production typically involves pouring the lithium carbonate to be dried into the equipment and allowing it to come into contact with hot air to achieve heat exchange and evaporate the internal moisture. However, in actual operation, the lithium carbonate powder loses moisture during drying, and its quality changes. It may fly out of the drying equipment during the drying process. Since this substance contains a certain degree of toxicity, it may cause harm to human health if inhaled. Moreover, during the drying process, lithium carbonate powder tends to accumulate and is difficult to fully contact with hot air, resulting in poor drying effect and low drying efficiency. Therefore, we propose a drying device for lithium carbonate production that prevents lithium carbonate from flying out. Utility Model Content
[0004] The main objective of this invention is to provide a drying device for lithium carbonate production that prevents lithium carbonate from flying away, which can effectively solve the problems in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a drying device for lithium carbonate production that prevents lithium carbonate from flying, comprising a support frame, a drying chamber fixedly connected to the upper surface of the support frame, a feeding pipe horizontally arranged at the upper end of the inner cavity of the drying chamber, a filter screen nested on the lower surface of the feeding pipe, a feeding hopper fixedly nested on one side of the upper surface of the drying chamber, and the bottom end of the feeding hopper communicating with the top end of one side of the feeding pipe, a second spiral rod horizontally rotatably arranged in the inner cavity of the feeding pipe, a first servo motor nested on the outer wall of the feeding pipe on one side of the second spiral rod, and the power output end of the first servo motor fixedly connected to one end of the second spiral rod, an air supply pipe nested on the side of the drying chamber opposite to the first servo motor, and the air supply pipe being located below the feeding pipe, a blower communicating with the outer wall of the air supply pipe, and a heating wire provided at the air outlet of the blower, a ventilation window opened on the side of the drying chamber opposite to the air supply pipe, and a dust filter cloth detachably connected to the inner wall of the ventilation window.
[0006] Preferably, a rotating connector is rotatably connected at the center of the ventilation window, and the rotating connector passes through the center of the dust filter cloth and extends to the inside of the dust filter cloth. A brush plate is provided on the inner wall of the dust filter cloth, and the end of the brush plate is fixedly connected to the rotating connector.
[0007] Preferably, the rotating connector has a transmission belt fitted onto its surface through a belt groove, and the other end of the transmission belt is fitted onto one end of the first spiral rod, with a corresponding belt groove formed on the surface of the first spiral rod at the end of the transmission belt.
[0008] Preferably, the bottom of the drying chamber is provided with a discharge pipe, and the inner cavity of the discharge pipe is provided with a first spiral rod. A second servo motor is provided on one side of the first spiral rod, and the second servo motor is detachably mounted on one side surface of the drying chamber.
[0009] Preferably, the discharge pipe is hinged to a sealing cap on one side surface relative to the second servo motor.
[0010] Preferably, the surface of the drying oven is equipped with an electrical control box, and the first servo motor, the second servo motor, the blower, and the heating wire installed at the blower outlet are all electrically connected to an external power source through the electrical control box.
[0011] Preferably, the inner wall of the drying oven is provided with a heat insulation layer.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] 1. This utility model utilizes a first servo motor, a first screw rod, a feeding pipe, an air supply pipe, a blower, and a filter screen in a coordinated manner. During drying, lithium carbonate in the feeding hopper falls into the feeding pipe. The first servo motor drives the second screw rod to rotate, which in turn pushes the material box to be conveyed inside. During the conveying process, the lithium carbonate falls evenly into the drying chamber through the holes in the filter screen. Hot air is generated by the air supply pipe, the blower, and the heating wire at the blower outlet to dry the falling lithium carbonate. During drying, the first screw rod prevents lithium carbonate from flying out of the feeding hopper, effectively preventing it from flying away. This feeding method allows the lithium carbonate to be initially dispersed in the feeding pipe and enter the drying chamber in a relatively uniform state to contact the hot air, avoiding the problem of powder accumulation and insufficient contact with hot air. This improves heat exchange efficiency, thereby enhancing the drying effect and efficiency, ensuring stable drying quality of the lithium carbonate product, and guaranteeing the high efficiency and safety of the entire production process.
[0014] 2. This utility model, by setting up a rotating connector, a transmission belt, and a first screw rod to cooperate with each other, enables the first screw rod to rotate and feed material during the feeding and drying process. When the first screw rod rotates to feed material, the transmission belt can simultaneously drive the brush plate to clean the dust filter cloth set inside the ventilation window. This prevents the dust filter cloth from being blocked by lithium carbonate powder due to long-term use, which affects the ventilation and filtration effect. This achieves automatic cleaning of the dust filter cloth, ensures the continuous and stable operation of the ventilation and filtration system of the drying device, and thus improves the drying effect. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the structure of a partial cross-sectional view of the drying phase of this utility model;
[0017] Figure 3 This is a structural schematic diagram of the other side of the present invention.
[0018] In the diagram: 1. Support frame; 2. Drying oven; 3. Electrical control box; 4. Feeding pipe; 5. Feeding hopper; 6. Air supply pipe; 7. Blower; 8. Discharge pipe; 9. First screw rod; 10. Sealing cover; 11. Second screw rod; 12. Filter screen; 13. Ventilation window; 14. Dust filter cloth; 15. Rotary connector; 16. Brush plate; 17. Transmission belt; 18. First servo motor; 19. Second servo motor. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0020] Example
[0021] Please see Figure 1 - Figure 3The diagram shows a drying device for lithium carbonate production to prevent lithium carbonate from flying away. It includes a support frame 1, with a drying chamber 2 fixedly connected to its upper surface. A feeding pipe 4 is laterally arranged at the upper end of the inner cavity of the drying chamber 2. A filter screen 12 is nested on the lower surface of the feeding pipe 4. A feeding hopper 5 is fixedly nested on one side of the upper surface of the drying chamber 2, with its bottom end communicating with the top end of one side of the feeding pipe 4. A second spiral rod 11 is laterally rotatable within the inner cavity of the feeding pipe 4. A first servo motor 18 is nested on the outer wall of the feeding pipe 4 on one side of the second spiral rod 11, and its power output end is fixedly connected to one end of the second spiral rod 11. An air supply pipe 6 is nested on the side of the drying chamber 2 opposite to the first servo motor 18. Located below the feeding pipe 4, the outer wall of the air supply pipe 6 is interconnected with a blower 7, and a heating wire is provided at the air outlet of the blower 7. The drying chamber 2 has a ventilation window 13 on one side relative to the air supply pipe 6, and a dust filter cloth 14 is detachably connected to the inner wall of the ventilation window 13. The first servo motor 18 drives the second screw rod 11 to rotate, thereby pushing the material box to be conveyed inside. During the conveying process, the material falls evenly into the drying chamber 2 through the holes of the filter screen 12. The air supply pipe 6, the blower 7, and the heating wire at the air outlet of the blower 7 work together to generate hot air, thereby drying the falling lithium carbonate. During the drying process, the first screw rod 9 blocks the lithium carbonate from flying out of the feeding hopper 5, thus effectively preventing the lithium carbonate from flying away.
[0022] The ventilation window 13 is rotatably connected to a rotating connector 15 at its center. The rotating connector 15 passes through the center of the dust filter cloth 14 and extends to the inside of the dust filter cloth 14. The inner wall of the dust filter cloth 14 is provided with a brush plate 16, and the end of the brush plate 16 is fixedly connected to the rotating connector 15. A transmission belt 17 is fitted onto the surface of the rotating connector 15 through a belt groove. The other end of the transmission belt 17 is fitted onto one end of the surface of the first spiral rod 9, and a corresponding belt groove is opened on the surface of the first spiral rod 9 at the end of the transmission belt 17. When the first spiral rod 9 rotates to feed or discharge material, the transmission belt 17 can simultaneously drive the brush plate 16 to clean the dust filter cloth 14 set inside the ventilation window 13. This prevents the dust filter cloth 14 from being blocked by lithium carbonate powder due to long-term use, which affects the ventilation and filtration effect. This achieves automatic cleaning of the dust filter cloth 14, ensures the continuous and stable operation of the ventilation and filtration system of the drying device, and thus improves the drying effect.
[0023] The drying chamber 2 is equipped with a discharge pipe 8 at its bottom. A first spiral rod 9 is rotatably mounted inside the discharge pipe 8. A second servo motor 19 is mounted on one side of the first spiral rod 9 and is detachably mounted on one side of the drying chamber 2. A sealing cover 10 is hinged to the side surface of the discharge pipe 8 relative to the second servo motor 19. During discharge, the first spiral rod 9 is rotated by the second servo motor 19, thereby enabling precise control of the discharge speed and amount. This avoids material blockage or leakage caused by improper discharge, ensuring smooth production. Furthermore, the hinged sealing cover 10 allows operators to flexibly control the start and stop of discharge according to actual needs, improving the convenience and reliability of equipment operation.
[0024] The drying chamber 2 is equipped with an electrical control box 3. The first servo motor 18, the second servo motor 19, the blower 7, and the heating wires installed at the blower 7's air outlet are all electrically connected to an external power source via the electrical control box 3. The inner wall of the drying chamber 2 is provided with an insulation layer. The electrical control box 3 precisely controls the operating parameters of each key component, including the motor speed, the airflow of the blower 7, and the temperature of the heating wires. This is as important as the precise control of the reactor temperature, allowing for flexible adjustments according to different lithium carbonate drying process requirements to ensure the drying process is carried out under optimal conditions, guaranteeing product quality and production efficiency. The insulation layer on the inner wall of the drying chamber 2 helps reduce heat loss and improve energy utilization efficiency.
[0025] It should be noted that this utility model is a drying device for lithium carbonate production that prevents lithium carbonate from flying away. The lithium carbonate raw material to be dried is poured into the drying device through the feeding hopper 5. Lithium carbonate enters the feeding pipe 4 from the feeding hopper 5. At this time, the first servo motor 18 is started, which drives the second screw rod 11 inside the feeding pipe 4 to rotate. As the second screw rod 11 rotates, the lithium carbonate is pushed along the inner side of the feeding pipe 4 towards the drying chamber 2. During the conveying process, because the lower surface of the feeding pipe 4 is nested with a filter screen 12, the lithium carbonate can only fall evenly into the drying chamber 2 through the holes of the filter screen 12. When the lithium carbonate begins to fall into the drying chamber 2, the blower 7 and the heating wire connected to it are started. The blower 7 blows air towards the heating wire, and the air becomes hot air after passing through the heating wire. The hot air rises in the drying chamber 2 and comes into full contact with the falling lithium carbonate, improving the heat exchange efficiency, thereby improving the drying effect and drying efficiency, and ensuring that the lithium carbonate product can reach a stable drying quality standard. After drying, the first screw rod 9 is rotated by the second servo motor 19, which quickly discharges the dried lithium carbonate, saving time and effort and effectively improving the drying efficiency.
[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.
[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A drying device for lithium carbonate production to prevent lithium carbonate from flying, comprising a support frame (1), characterized in that: A drying chamber (2) is fixedly connected to the upper surface of the support frame (1). A feeding pipe (4) is horizontally arranged at the upper end of the inner cavity of the drying chamber (2). A filter screen (12) is nested on the lower surface of the feeding pipe (4). A feeding hopper (5) is fixedly nested on one side of the upper surface of the drying chamber (2), and the bottom end of the feeding hopper (5) is interconnected with the top end of one side of the feeding pipe (4). A second spiral rod (11) is horizontally rotatably arranged in the inner cavity of the feeding pipe (4). A first servo motor (18) is nested on the outer wall of the feeding pipe (4) on one side of the second spiral rod (11). The power output end of the first servo motor (18) is fixedly connected to one end of the second screw rod (11). The drying box (2) is nested with an air supply pipe (6) on one side relative to the first servo motor (18), and the air supply pipe (6) is located below the feeding pipe (4). The outer wall of the air supply pipe (6) is connected to a blower (7), and a heating wire is provided at the air outlet of the blower (7). The drying box (2) is provided with a ventilation window (13) on one side relative to the air supply pipe (6), and a dust filter cloth (14) is detachably connected to the inner wall of the ventilation window (13).
2. The drying device for lithium carbonate production to prevent lithium carbonate from flying away according to claim 1, characterized in that: A rotating connector (15) is rotatably connected at the center of the ventilation window (13), and the rotating connector (15) passes through the center of the dust filter cloth (14) and extends to the inside of the dust filter cloth (14). A brush plate (16) is provided on the inner wall of the dust filter cloth (14), and the end of the brush plate (16) is fixedly connected to the rotating connector (15).
3. A drying device for lithium carbonate production to prevent lithium carbonate from flying away, as described in claim 1, characterized in that: The bottom of the inner cavity of the drying oven (2) is provided with a discharge pipe (8), and the inner cavity of the discharge pipe (8) is provided with a first spiral rod (9). A second servo motor (19) is provided on one side of the first spiral rod (9), and the second servo motor (19) is detachably mounted on one side surface of the drying oven (2).
4. A drying device for lithium carbonate production to prevent lithium carbonate from flying away, as described in claim 3, characterized in that: The discharge pipe (8) is hinged to a sealing cap (10) on one side surface relative to the second servo motor (19).
5. A drying device for lithium carbonate production to prevent lithium carbonate from flying away, as described in claim 1, characterized in that: The surface of the drying oven (2) is equipped with an electrical control box (3), and the first servo motor (18), the second servo motor (19), the blower (7), and the heating wire installed at the air outlet of the blower (7) are all electrically connected to the external power supply through the electrical control box (3).
6. A drying device for lithium carbonate production to prevent lithium carbonate from flying away, as described in claim 1, characterized in that: The drying oven (2) has an insulation layer on its inner wall.