A lithium carbonate flash dryer bin arrangement

Abstract

This utility model belongs to the field of dryer technology, and particularly relates to a lithium carbonate flash dryer hopper device, including a support part, a drive mechanism fixedly connected to the support part, and a feeding mechanism connected to the drive mechanism through a transmission mechanism. The discharge end of the feeding mechanism is connected to the drying equipment, and a feeding component is provided on the inlet of the feeding mechanism. The feeding component includes an eccentric hopper, the inlet diameter of which is larger than the outlet diameter, and the inlet and outlet of the eccentric hopper are eccentrically set. The outlet of the eccentric hopper is connected to a buffer hopper through a vibration-damping flexible connection, and the buffer hopper is connected to the inlet of the feeding mechanism. The device of this utility model has two advantages: firstly, it significantly increases the service life and greatly reduces the number of maintenance operations, thereby reducing equipment maintenance costs and improving production efficiency; secondly, by avoiding contamination of materials by metal particles, the quality of lithium carbonate products is effectively guaranteed, and the quality stability is greatly improved.

Description

Technical Field

[0001] This utility model belongs to the field of drying technology, and in particular relates to a silo device for a lithium carbonate flash dryer. Background Technology

[0002] In the lithium salt processing industry, flash dryer silo units are crucial for the drying of lithium carbonate. A high-performance flash dryer silo unit can not only significantly improve drying efficiency, but also play a positive role in ensuring production safety, implementing environmental protection principles, and reducing maintenance costs.

[0003] However, the flash dryer hopper devices commonly found in the current market reveal several problems that urgently need to be addressed. On the one hand, the flash feed screw requires frequent maintenance, with the hopper frequently cracking due to vibration, necessitating repeated welding operations. This not only increases equipment maintenance costs but also affects production continuity. On the other hand, there is a risk of metal particle contamination inside the device, directly leading to significant fluctuations in product quality, making it difficult to meet stringent market requirements. Therefore, developing a novel lithium carbonate flash dryer hopper device to address the pain points of existing devices is of significant practical importance for improving the overall efficiency of lithium carbonate drying production. Utility Model Content

[0004] The purpose of this invention is to provide a lithium carbonate flash dryer hopper device to solve the above-mentioned problems.

[0005] To achieve the above objectives, this utility model provides the following solution:

[0006] A lithium carbonate flash dryer hopper device includes a support part, a drive mechanism fixedly connected to the support part, a feeding mechanism connected to the drive mechanism through a transmission mechanism, a discharge end of the feeding mechanism connected to the drying equipment, and a feeding component provided on the inlet of the feeding mechanism.

[0007] The feeding assembly includes an eccentric hopper with an inlet diameter larger than its outlet diameter. The inlet and outlet of the eccentric hopper are eccentrically positioned. The outlet of the eccentric hopper is connected to a buffer hopper via a vibration-damping flexible connection. The buffer hopper is connected to the inlet of the feeding mechanism.

[0008] Preferably, the support includes a platform, a base is fixedly connected to the top surface of the platform, and the drive mechanism is fixedly installed on the base.

[0009] Preferably, the driving mechanism includes a drive motor, which is fixedly mounted on the base, and the output shaft of the drive motor is connected to the feeding mechanism through the transmission mechanism.

[0010] Preferably, the feeding mechanism includes: a feeding screw housing, the feeding screw housing is fixedly installed on the base, the outlet of the feeding screw housing is connected to the inlet of the drying equipment, the inlet of the feeding screw housing is connected to the buffer hopper, a screw shaft is coaxially arranged inside the feeding screw housing, a screw blade is fixedly connected to the outer wall of the screw shaft, the screw blade is spirally wound along the length direction of the screw shaft, and the screw blade is located inside the feeding screw housing;

[0011] An installation ring is provided at one end of the feed screw housing away from the drying equipment. The installation ring is located inside the feed screw housing. The bearing mounting position of the screw shaft is inserted into the installation ring. The inner ring of the first bearing is sleeved on the bearing mounting position of the screw shaft. The outer ring of the first bearing abuts against the inner side wall of the installation ring. An end cap is provided at one side opening of the installation ring. The end cap is coaxially fixed to the feed screw housing and abuts against the outer ring of the first bearing.

[0012] The installation transition section of the spiral shaft extends out of the end of the feed spiral housing and is connected to the transmission mechanism. A limiting bushing is fixedly attached to the installation transition section of the spiral shaft, and the limiting bushing is close to the feed spiral housing.

[0013] Preferably, the transmission mechanism includes a connecting shaft, one end of which is coaxially fixed to the spiral shaft via a reinforcing sleeve, a bearing seat is rotatably connected to the outer side of the connecting shaft, the bearing seat is fixed to the base, the other end of the connecting shaft passes through the bearing seat and is coaxially fixed to one side of a coupling, and the other side of the coupling is coaxially fixed to the output shaft of the drive motor.

[0014] Preferably, a first positioning sleeve, a second positioning sleeve, and a second bearing are fitted on the outer side wall of the connecting shaft. The first positioning sleeve abuts against the coupling, one side of the inner ring of the second bearing abuts against the first positioning sleeve, and the other side of the inner ring of the second bearing abuts against the second positioning sleeve. The second positioning sleeve is fixedly connected to the connecting shaft, and the outer ring of the second bearing is fixedly connected to the inner side wall of the bearing seat.

[0015] Preferably, a vibration motor is installed on the outer wall of the buffer hopper.

[0016] Preferably, the height of the eccentric hopper is 1650mm and the eccentricity angle of the eccentric hopper is 61°.

[0017] Compared with the prior art, the present invention has the following advantages and technical effects:

[0018] Material flow path optimization and impact mitigation: In the operation of this device, the material first enters the eccentric silo. Through a unique design, the eccentric silo sets the inlet and outlet eccentrically, significantly optimizing the material flow path. This design effectively disperses the impact force when the material enters the eccentric silo, greatly reducing collisions and friction between the material and the silo wall. This not only extends the service life of the eccentric silo but also ensures smooth material flow.

[0019] Buffering and Vibration Energy Absorption: Material in the eccentric hopper enters the buffer hopper via a vibration-damping flexible connection. This design effectively absorbs and disperses the vibration energy generated by material impact in the eccentric hopper, significantly reducing damage. Compared to traditional equipment, this design significantly reduces the risk of hopper cracking, avoiding welding maintenance work caused by frequent cracking. Simultaneously, due to reduced mechanical wear, the risk of metal particles entering the product flow due to wear is greatly mitigated, effectively preventing metal particle contamination of the material.

[0020] Dual Improvement in Equipment Maintenance and Product Quality: Through the above design, the device of this utility model demonstrates superior performance in practical applications. On the one hand, the service life of the equipment is significantly increased, and the number of maintenance operations is greatly reduced, thereby lowering maintenance costs and improving production efficiency. On the other hand, by avoiding contamination of materials by metal particles, the quality of lithium carbonate products is effectively guaranteed, and quality stability is greatly improved. This not only helps enterprises meet the stringent quality requirements of the high-end market but also enhances their competitiveness within the industry, creating greater economic and social benefits. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a cross-sectional view of the spiral shaft in this utility model;

[0024] Figure 3 This is a top view of the buffer silo in this utility model;

[0025] Figure 4 This is a front view of the buffer silo in this utility model;

[0026] Figure 5This is a left view of the eccentric hopper in this utility model;

[0027] Figure 6 This is a front view of the eccentric hopper in this utility model;

[0028] The components are as follows: 1. Platform; 2. Base; 3. Eccentric hopper; 4. Vibration damping flexible connection; 5. Vibration motor; 6. Buffer hopper; 7. Feeding screw shell; 8. Bearing seat; 9. Screw shaft; 10. Drive motor; 11. Drying equipment; 12. First positioning sleeve; 13. Reinforcing sleeve; 14. Second positioning sleeve; 15. Spiral fan blade; 16. First bearing; 17. Second bearing; 18. Limiting bushing; 19. Coupling; 20. Connecting shaft. Detailed Implementation

[0029] 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.

[0030] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] Reference Figures 1 to 6 This utility model discloses a lithium carbonate flash dryer hopper device, including a support part, a drive mechanism fixedly connected to the support part, the drive mechanism being connected to a feeding mechanism through a transmission mechanism, the discharge end of the feeding mechanism being connected to the drying equipment 11, and a feeding component being provided on the inlet of the feeding mechanism.

[0032] The feeding assembly includes an eccentric hopper 3, the inlet diameter of which is larger than the outlet diameter. The inlet and outlet of the eccentric hopper 3 are eccentrically set. The outlet of the eccentric hopper 3 is connected to a buffer hopper 6 via a vibration damping soft connection 4. The buffer hopper 6 is connected to the inlet of the feeding mechanism.

[0033] In operation, the material first enters the eccentric hopper 3. This eccentric hopper 3, through its unique design, sets the outlet and inlet eccentrically, significantly optimizing the material flow path. This design effectively disperses the impact force when the material enters the eccentric hopper 3, greatly reducing collisions and friction between the material and the hopper wall. This not only extends the service life of the eccentric hopper 3 but also ensures smooth material flow.

[0034] Material within the eccentric hopper 3 enters the buffer hopper 6 via a shock-absorbing flexible connection 4. This design effectively absorbs and disperses the vibration energy generated by material impact within the eccentric hopper, significantly reducing damage to the eccentric hopper 3. Compared to traditional equipment, this design significantly reduces the risk of hopper cracking, avoiding welding maintenance work caused by frequent cracking. Simultaneously, due to reduced mechanical wear, the risk of metal particles entering the product process due to wear is greatly mitigated, effectively preventing metal particle contamination of the material.

[0035] The design is further optimized so that the support part includes a platform 1, a base 2 is fixedly connected to the top surface of the platform 1, and a drive mechanism is fixedly installed on the base 2.

[0036] Platform 1 serves as the carrier, supporting the entire device, while base 2 is used to install drive motor 10, feed screw housing 7, and bearing seat 8.

[0037] The scheme is further optimized. The drive mechanism includes a drive motor 10, which is fixedly mounted on the base 2. The output shaft of the drive motor 10 is connected to the feeding mechanism through a transmission mechanism.

[0038] Further optimization of the scheme: the feeding mechanism includes: a feeding screw housing 7, which is fixedly installed on the base 2. The outlet of the feeding screw housing 7 is connected to the inlet of the drying equipment 11. The inlet of the feeding screw housing 7 is connected to the buffer hopper 6. A screw shaft 9 is coaxially arranged inside the feeding screw housing 7. A spiral fan blade 15 is fixedly connected to the outer wall of the screw shaft 9. The spiral fan blade 15 is spirally wound along the length direction of the screw shaft 9 and is located inside the feeding screw housing 7.

[0039] An installation ring is provided at the end of the feed screw housing 7 away from the drying equipment 11. The installation ring is located inside the feed screw housing 7. The bearing mounting position of the screw shaft 9 passes through the installation ring. The inner ring of the first bearing 16 is sleeved on the bearing mounting position of the screw shaft 9. The outer ring of the first bearing 16 abuts against the inner side wall of the installation ring. An end cap is provided at one side opening of the installation ring. The end cap is coaxially fixed to the feed screw housing 7 and abuts against the outer ring of the first bearing 16.

[0040] The installation transition section of the spiral shaft 9 extends out of the end of the feed spiral housing 7 and is connected to the transmission mechanism. A limiting sleeve 18 is fixed on the installation transition section of the spiral shaft 9. The limiting sleeve 18 is close to the feed spiral housing 7. By limiting the axial movement of the spiral shaft 9, the limiting sleeve 18 can reduce the impact and wear on the second bearing 17 and extend the service life of the second bearing 17.

[0041] The drive motor 10 drives the spiral shaft 9 to rotate, and the spiral shaft 9 drives the spiral fan blades 15 to rotate inside the feed spiral shell 7, thereby sending the material into the drying equipment 11.

[0042] The installation of the first bearing 16 reduces the friction between the screw shaft 9 and the feed screw housing 7, thereby reducing the risk of metal particles being generated by friction.

[0043] In a further optimized design, the transmission mechanism includes a connecting shaft 20. One end of the connecting shaft 20 is coaxially fixed to the spiral shaft 9 via a reinforcing sleeve 13. A bearing seat 8 is rotatably connected to the outer side of the connecting shaft 20. The bearing seat 8 is fixed to the base 2. The other end of the connecting shaft 20 passes through the bearing seat 8 and is coaxially fixed to one side of a coupling 19. The other side of the coupling 19 is coaxially fixed to the output shaft of the drive motor 10.

[0044] The bearing housing 8 makes the connecting shaft 20 rotate more smoothly, eliminating direct friction between the shaft head and the packing, thereby greatly reducing the maintenance frequency of the feed screw housing 7. This not only reduces downtime and improves production efficiency, but also significantly reduces the cost caused by frequent maintenance; it also reduces the entry of metal particles caused by mechanical wear into the product process, effectively improving the quality and stability of lithium carbonate products.

[0045] In a further optimized design, a first positioning sleeve 12, a second positioning sleeve 14, and a second bearing 17 are fitted onto the outer side wall of the connecting shaft 20. The first positioning sleeve 12 abuts against the coupling 19. One side of the inner ring of the second bearing 17 abuts against the first positioning sleeve 12, and the other side of the inner ring of the second bearing 17 abuts against the second positioning sleeve 14. The second positioning sleeve 14 is fixedly connected to the connecting shaft 20, and the outer ring of the second bearing 17 is fixedly connected to the inner side wall of the bearing seat 8.

[0046] The first positioning sleeve 12 and the second positioning sleeve 14 are set to fix the inner ring of the second bearing 17, so as to prevent the second bearing 17 from becoming loose from the connecting shaft 20, which would cause the connecting shaft 20 to shake and affect production.

[0047] To further optimize the design, a vibration motor 5 is installed on the outer wall of the buffer silo 6.

[0048] The buffer hopper 6 is equipped with a conveyor, which makes the material conveying more stable and continuous, reduces production interruptions caused by poor material flow or blockage, optimizes the entire production process, and improves production efficiency and stability; the conveyor is existing technology and will not be described in detail here.

[0049] The vibration motor 5 vibrates the buffer hopper 6, allowing the material to flow more smoothly into the feed screw housing 7.

[0050] The design was further optimized so that the height of the eccentric hopper 3 is 1650mm and the eccentric angle of the eccentric hopper 3 is 61°.

[0051] In this case, the material flow path is better than existing technologies, which can effectively reduce the impact of materials on the silo walls.

[0052] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0053] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A lithium carbonate flash dryer hopper device, characterized in that, It includes a support part, on which a drive mechanism is fixedly connected. The drive mechanism is connected to a feeding mechanism through a transmission mechanism. The discharge end of the feeding mechanism is connected to the drying equipment (11). The inlet of the feeding mechanism is provided with a feeding component. The feeding assembly includes an eccentric hopper (3), the inlet diameter of which is larger than the outlet diameter. The inlet and outlet of the eccentric hopper (3) are eccentrically set. The outlet of the eccentric hopper (3) is connected to a buffer hopper (6) via a vibration damping soft connection (4). The buffer hopper (6) is connected to the inlet of the feeding mechanism.

2. The lithium carbonate flash dryer silo device according to claim 1, characterized in that: The support includes a platform (1), a base (2) is fixedly connected to the top surface of the platform (1), and the driving mechanism is fixedly installed on the base (2).

3. The lithium carbonate flash dryer silo device according to claim 2, characterized in that: The driving mechanism includes a drive motor (10), which is fixedly mounted on the base (2). The output shaft of the drive motor (10) is connected to the feeding mechanism through the transmission mechanism.

4. The lithium carbonate flash dryer silo device according to claim 3, characterized in that: The feeding mechanism includes: a feeding spiral shell (7), which is fixedly installed on the base (2). The outlet of the feeding spiral shell (7) is connected to the inlet of the drying equipment (11), and the inlet of the feeding spiral shell (7) is connected to the buffer hopper (6). A spiral shaft (9) is coaxially arranged inside the feeding spiral shell (7). A spiral fan blade (15) is fixedly connected to the outer wall of the spiral shaft (9). The spiral fan blade (15) is spirally wound along the length direction of the spiral shaft (9). The spiral fan blade (15) is located inside the feeding spiral shell (7). An installation ring is provided at one end of the feed screw housing (7) away from the drying equipment (11). The installation ring is located inside the feed screw housing (7). The bearing mounting position of the screw shaft (9) is inserted into the installation ring. The inner ring of the first bearing (16) is sleeved on the bearing mounting position of the screw shaft (9). The outer ring of the first bearing (16) abuts against the inner side wall of the installation ring. An end cap is provided at one side opening of the installation ring. The end cap is coaxially fixed to the feed screw housing (7). The end cap abuts against the outer ring of the first bearing (16). The installation transition section of the spiral shaft (9) extends out of the end of the feed spiral housing (7) and is connected to the transmission mechanism. A limiting bushing (18) is fixed on the installation transition section of the spiral shaft (9), and the limiting bushing (18) is close to the feed spiral housing (7).

5. The lithium carbonate flash dryer silo device according to claim 4, characterized in that: The transmission mechanism includes a connecting shaft (20), one end of which is coaxially fixed to the spiral shaft (9) via a reinforcing sleeve (13). A bearing seat (8) is rotatably connected to the outside of the connecting shaft (20), and the bearing seat (8) is fixed to the base (2). The other end of the connecting shaft (20) passes through the bearing seat (8) and is coaxially fixed to one side of a coupling (19). The other side of the coupling (19) is coaxially fixed to the output shaft of the drive motor (10).

6. The lithium carbonate flash dryer silo device according to claim 5, characterized in that: A first positioning sleeve (12), a second positioning sleeve (14), and a second bearing (17) are fitted on the outer side wall of the connecting shaft (20). The first positioning sleeve (12) abuts against the coupling (19). One side of the inner ring of the second bearing (17) abuts against the first positioning sleeve (12), and the other side of the inner ring of the second bearing (17) abuts against the second positioning sleeve (14). The second positioning sleeve (14) is fixedly connected to the connecting shaft (20), and the outer ring of the second bearing (17) is fixedly connected to the inner side wall of the bearing seat (8).

7. The lithium carbonate flash dryer silo device according to claim 1, characterized in that: A vibration motor (5) is installed on the outer wall of the buffer hopper (6).

8. The lithium carbonate flash dryer silo device according to claim 1, characterized in that: The height of the eccentric hopper (3) is 1650mm, and the eccentric angle of the eccentric hopper (3) is 61°.

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