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  • I、Equipment introduction

    The equipment is used for the melting, granulating, crushing, grinding, receiving and packaging of ternary LiCl-LiBr-LiF molten salt electrolyte.

    The system is isolated and sealed with the glove box and the environment, which can ensure that the whole production process is carried out under closed conditions. The waste gas generated in the production process can be directly discharged after being pumped out by the vacuum pump and treated by the tail gas treatment device. It will not diffuse to the working environment.

    The system adopts the integrated design of manual feeding, material bin and the left transition bin of the glove box. The materials brought by the screw mechanism will automatically enter the melting device, and the materials will enter the drum granulation device through overflow after melting. After cooling to room temperature, the material after melting and granulation is added to the crusher through the mesh belt conveyor, and then packaged and stored after grinding, crushing and screening. The designed capacity of the system is 9-10kg / h. at the same time, the system includes safety alarm and interlock devices such as over-heated and leakage to ensure safe and efficient production.

    II、Main Technical Parameters

    1) Power supply: 380V AC, three-phase five wire system, 50Hz;

    2) Total power: About 25kW;

    3) Capacity: 9-10kg / h powder material;

    4) Discharge size:<100 mesh molten salt powder;

    5) Overall dimension range shall not exceed 10m×2.9m×2.8m (L×W×H)

    III、Technological Process

    NO

    Step

    Use concept

    1

    Pre-heating system

    1) Check the tightness of glove box;

    2) Start the melting furnace, heat tracing insulation and other heating systems;

    3) Ensure that the valves at the lower part of the feed bin and the magnetic fluid sealing parts are in good sealing condition. The constant temperature of melting furnace shall not be lower than 600 ℃.

    4) Start the drum granulation and mesh belt conveyor, and confirm that the cooling system is in good condition

     

    2

    Adding source

    1) After the powder is manually loaded into the feeding bin, it shall be sealed. After air washing for three times, open the lower valve of the silo.

    2) Start the screw feeding mechanism, and the preliminary design feeding speed is 10kg / h. Suspend loading 30 minutes after initial loading. 5kg molten salt begins to be pre-melted, and after 2h heat preservation, continue to load.

    3

    Melting molecule

    Molten salt flows out automatically from the overflow port and enters the drum granulation system, which is controlled automatically.

    4

    Collection and transform

    After drum granulation, the salt particles are transported by stainless steel mesh belt conveyor and cooling to below 40 ℃;

    5

    Grinding and sieving

    After the materials are cooled below 40 ℃, turn on the grinder, manually load the materials into the grinder silo, and seal them in the packaging bag at the outlet.

    IV、List of Main System Configurations

    NO

    Name

    Number

    brand

    1

    Glove box (including 1 set of high-power air conditioner, 4 sets of purification column, and 1 set of maintenance cabin door)

    1

    GeWei

    2

    Loading device (including screw loading mechanism, magnetic fluid seal, accurate weighing system and external loading escalator)

    1

    Shanghai Yuzhi

    3

    Heating melting device

    1

    Shanghai Yuzhi

    4

    Inner kettle (silicon carbide)

    2

    Shandong Yunding

    5

    Protective outer kettle (C276 )

    1

    Shanghai Yuzhi

    6

    Drum granulator (including heat tracing system)

    1

    Shanghai Yuzhi

    7

    Salt grain transport device

    1

    Shanghai Yuzhi

    8

    Grinding mill

    1

    Wenzhou dingli

    9

    Electric control system

    1

    Shanghai Yuzhi

    10

    Internal structure

    1

    Shanghai Yuzhi

    11

    Electrical control system (including electric control cabinet, touch screen, printer, etc.)

    1

    Shanghai Yuzhi

    12

    Tail gas treatment unit

    1

    Shanghai Yuzhi
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