Screening and demagnetizing device for lithium iron phosphate production

Abstract

The utility model provides a screening and demagnetizing device for lithium iron phosphate production, which relates to the technical field of lithium iron phosphate production devices, and comprises a base, a motor fixing seat, a support spring, a bottom layer barrel, an upper layer barrel, a demagnetizing assembly, a screen and a top cover, the motor fixing seat is arranged on the base through the support spring, a vibration motor is arranged in the motor fixing seat, and the bottom layer barrel is arranged on the top cover. The bottom-layer barrel is installed on the motor fixing base and fixed through the clamp assembly, a discharging port is formed in the side wall of the bottom-layer barrel, the screen is installed between the bottom-layer barrel and the upper-layer barrel and fixed through the clamp assembly, a discharging port is formed in the side wall of the upper-layer barrel, and the demagnetizing assembly is installed in the upper-layer barrel. The top cover is installed on the upper-layer barrel and fixed through the clamp assembly, a feeding port is formed in the top cover, and the problems that in a traditional mode, the number of operation steps is large, the working procedures are complex, and the demagnetizing effect is not fine enough can be solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to lithium iron phosphate production device technical field, specifically related to a lithium iron phosphate production is screened and is removed magnetic device. BACKGROUND

[0002] Lithium iron phosphate is a compound commonly used in lithium ion battery positive material, because it has high safety, long cycle life and environmental protection friendly advantages, has been widely used in new energy field. Its production process usually includes mixing, calcination, crushing, screening and impurity removal and multiple steps. Among them, the finished material after crushing needs to be further screened and removed magnetically to ensure the purity and performance of the product.

[0003] In the traditional process, screening and magnetic removal are carried out in steps: the material is usually first screened by ultrasonic screening, and particles of different particle sizes are separated, and then the magnetic foreign matter (such as iron filings, iron oxides, etc.) in the material is removed by an electromagnetic field magnetic removal device. However, the traditional method has the problems of multiple operation steps and complex process, which not only increases the production cost and time, but also the magnetic removal effect is not fine enough. UTILITY MODEL CONTENT

[0004] In order to overcome the problems in the background art, the utility model provides a lithium iron phosphate production screening and magnetic removal device, which solves the problems of multiple operation steps, complex process and insufficient fine magnetic removal effect of the traditional method.

[0005] To achieve the above purpose, the utility model is realized by the following technical schemes:

[0006] A lithium iron phosphate production screening and magnetic removal device, comprising a base, a motor fixing seat, a supporting spring, a bottom layer cylinder, an upper layer cylinder, a magnetic removal assembly, a screen and a top cover, the motor fixing seat is installed on the base through the supporting spring, a vibration motor is installed in the motor fixing seat, the bottom layer cylinder is installed on the motor fixing seat and fixed through a bundle ring assembly, a discharge port is arranged on the side wall of the bottom layer cylinder, the screen is installed between the bottom layer cylinder and the upper layer cylinder and fixed through the bundle ring assembly, a discharge port is arranged on the side wall of the upper layer cylinder, the magnetic removal assembly is installed in the upper layer cylinder, the top cover is installed on the upper layer cylinder and fixed through the bundle ring assembly, and a feeding port is arranged on the top cover.

[0007] Further, the magnetic removal assembly comprises a support frame, a rod holder and a magnetic rod, the support frame comprises a plurality of rod members arranged uniformly around the center of the upper layer cylinder, the rod holders are uniformly installed on both sides of the rod members, and the magnetic rod is detachably installed on the rod holder.

[0008] Further, the magnetic rod is in the shape of a circular arc, and a plurality of magnetic rod rings are formed by installing a plurality of groups of magnetic rods on the rod holder.

[0009] Further, the upper layer cylinder is provided with 2-3 layers, and a screen is installed between the upper layer cylinders and fixed through a bundle ring assembly.

[0010] Further, an ultrasonic vibration assembly is installed below the screen.

[0011] The present application has the beneficial effects that:

[0012] The present application integrates the ultrasonic screening and magnetic removal functions into one device, and performs magnetic removal operation while screening, so that the magnetic foreign matter is effectively separated in the material screening process, the production process is simplified, the magnetic removal effect and efficiency are significantly improved, and the product purity and electrochemical performance of the lithium iron phosphate are improved. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to clearly illustrate the technical solutions of the embodiments of the present application, the drawings used in the embodiment description are described.

[0014] Fig. 1 It is a schematic diagram of the overall structure of the present application;

[0015] Fig. 2 It is a schematic diagram of the side view structure of the present application;

[0016] Fig. 3 It is a schematic diagram of the magnetic removal assembly structure of the present application;

[0017] Fig. 4 It is a schematic diagram of the bottom structure of the present application.

[0018] 1-base, 2-motor fixing seat, 3-supporting spring, 4-bundle ring assembly, 5-bottom layer cylinder, 6-upper layer cylinder, 7-magnetic removal assembly, 71-supporting frame, 72-rod support, 73-magnetic rod, 8-screen, 9-top cover, 91-feeding port, 10-ultrasonic vibration assembly. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical scheme and beneficial effects of the present application more clear, the preferred embodiments of the present application will be described in detail below with reference to the drawings, so as to facilitate the understanding of the technical personnel.

[0020] The present application discloses a screening and magnetic removal device for lithium iron phosphate production, which is referred to as Figs. 1-4A screening and demagnetizing device for lithium iron phosphate production includes a base 1, a motor mounting base 2, a support spring 3, a bottom cylinder 5, an upper cylinder 6, a demagnetizing assembly 7, a screen 8, and a top cover 9. The motor mounting base 2 is mounted on the base 1 via the support spring 3. Both ends of the support spring 3 are fixed to the base 1 and the motor mounting base 2 respectively via spring positioning cores. A vibrating motor is installed inside the motor mounting base 2. The vibration generated by the vibrating motor causes the upper cylinder to vibrate, thus screening the product. The bottom cylinder 5 is mounted on the motor mounting base 2 and fixed by a clamping ring assembly 4. The bottom cylinder 5 has a discharge port on its side wall, and the screened material is fine material after demagnetization. The screen 8 is installed between the bottom cylinder 5 and the upper cylinder 6 and is fixed by the clamping ring assembly 4, which facilitates disassembly for cleaning and replacement of screens of different specifications. The upper cylinder 6 has a discharge port on its side wall, and the screened material is coarse material after demagnetization. The demagnetizing assembly 7 is installed inside the upper cylinder 6 and uses magnetic force to adsorb and demagnetize magnetic foreign objects in the product. The top cover 9 is installed on the upper cylinder 6 and fixed by the clamping ring assembly 4. The top cover 9 has a feed port 91 for adding crushed lithium iron phosphate product.

[0021] See Figs. 1-4 The demagnetizing component 7 includes a support frame 71, a rod support 72, and a magnetic rod 73. The support frame 71 includes several rods evenly arranged around the center of the upper cylinder 6. The rod support 72 is evenly installed on both sides of the rods. The magnetic rod 73 is detachably installed on the rod support 72. The magnetic rod 73 is easy to install and can adsorb magnetic foreign objects in a timely manner during the vibrating screening process, making the screening effect more refined.

[0022] See Figs. 1-4 The magnetic rod 73 is arc-shaped, and multiple sets of magnetic rod rings are installed on the rod support 72. The magnetic rod rings are evenly distributed in the cylinder, which can fully adsorb the magnetic foreign objects separated during the vibrating screening process, thereby improving the demagnetization efficiency and effect.

[0023] See Figs. 1-4 The upper cylinder 6 has 2-3 layers, which makes the product screening more precise. Screens 8 are installed between the upper cylinders 6 and fixed by the clamping ring assembly 4. Demagnetizing components 7 are installed in each upper cylinder 6.

[0024] See Figs. 1-4 An ultrasonic vibration component 10 is installed below the screen 8, which can generate high-frequency micro-vibration on the screen, enabling the material to pass through the screen holes quickly, effectively preventing particle blockage, improving the separation accuracy of the material, and obtaining a more uniform particle distribution.

[0025] Work process:

[0026] The vibration motor in the starting motor fixing seat 2 is started, the ultrasonic vibration assembly 10 is started, the crushed lithium iron phosphate is added into the upper cylinder 6 from the feeding port 91, the material falls on the screen 8 and is subjected to high-frequency micro-vibration, magnetic impurities are adsorbed by the magnetic removal assembly 7 in the process, the qualified material can pass through the screen hole to enter the next cylinder, and finally the screened and magnetically removed lithium iron phosphate product is obtained through the discharge port of the bottom cylinder 5.

[0027] The above merely describes a preferred specific implementation manner of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art, according to the technical scheme and the inventive concept of the present application, can make equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A screening and magnetic separation device for lithium iron phosphate production, characterized by: Including base (1), motor fixed seat (2), support spring (3), bottom layer cylinder (5), upper layer cylinder (6), magnetic removal assembly (7), screen (8) and top cover (9), the motor fixed seat (2) is installed on the base (1) by support spring (3), the vibration motor is installed in motor fixed seat (2), bottom layer cylinder (5) is installed on motor fixed seat (2) and is fixed by bundle ring assembly (4), bottom layer cylinder (5) side wall is provided with discharge port, screen (8) is installed between bottom layer cylinder (5) and upper layer cylinder (6) and is fixed by bundle ring assembly (4), upper layer cylinder (6) side wall is provided with discharge port, magnetic removal assembly (7) is installed in upper layer cylinder (6), top cover (9) is installed on upper layer cylinder (6) and is fixed by bundle ring assembly (4), top cover (9) is provided with feed inlet (91).

2. The screening and magnetic separation apparatus for producing lithium iron phosphate according to claim 1, characterized in that: The magnetic removal assembly (7) includes support frame (71), rod holder (72) and magnetic rod (73), the support frame (71) includes a plurality of rod members evenly arranged around the center of the upper layer cylinder (6), the rod holder (72) is evenly installed on both sides of the rod member, and the magnetic rod (73) is detachably installed on the rod holder (72).

3. The screening and magnetic separation apparatus for producing lithium iron phosphate according to claim 2, characterized in that: The magnetic rod (73) is in the form of a circular arc, and the magnetic rod (73) is installed in multiple groups on the rod holder (72) to form a plurality of magnetic rod rings.

4. The screening and magnetic separation apparatus for producing lithium iron phosphate according to claim 1, characterized in that: The upper layer cylinder (6) is provided with 2-3 layers, the screen (8) is installed between the upper layer cylinders (6) and fixed by the bundle ring assembly (4), and the magnetic removal assembly (7) is installed in each upper layer cylinder (6).

5. The screening and magnetic separation apparatus for producing lithium iron phosphate according to claim 1, characterized in that: An ultrasonic vibration assembly (10) is installed below the screen (8).

Images