A Rotary Microwave Vacuum Dryer

A microwave vacuum drying and rotary technology, used in non-progressive dryers, dryers, drying solid materials, etc., can solve the problem that the solvent needs to be recovered or the system containing strong irritating toxic gases cannot be realized, and the material container cannot be pumped. Vacuum, material can not be granulated and other problems, to achieve the effect of shortening drying time, fast solvent evaporation, and improving drying efficiency

Inactive Publication Date: 2011-12-21
YANTAI ZHUONENG BATTERY MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Invention patent ZL02104214.4 discloses a "rotary continuous microwave drying device". Although it is a dynamic microwave drying, the surface of the material is constantly moving and updated, avoiding the accumulation of heat and water vapor, but because the device cannot pump the material container Vacuum, which cannot be realized for solvents that need to be recovered or s

Method used

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  • A Rotary Microwave Vacuum Dryer
  • A Rotary Microwave Vacuum Dryer
  • A Rotary Microwave Vacuum Dryer

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specific Embodiment approach

[0017] The specific embodiment: below in conjunction with accompanying drawing, the best embodiment of the present invention is described in detail:

Embodiment

[0018] Embodiment: a kind of rotary microwave vacuum drier (see Figure 1-Figure 3 ), which includes a bracket 11, an operation panel 17 is provided on the bracket 11, a microwave oven body 2 is connected between the brackets 11, a microwave generator 1 is arranged at the upper end of the microwave oven body 2, and one end of the oven door 23 is connected to the microwave oven body 2 through a door hinge 18 , the other end of the oven door 23 is connected with the microwave oven body 2 through the lock nut 19, the oven door 23 is provided with an oven door handle 20, and the microwave oven body 2 is provided with a double-cone rotary material cavity 3, and the double-cone rotary container The material cavity 3 has a built-in vacuum filter tube 4 with a filter head 22. One end of the double-cone rotary material cavity 3 is connected to the vacuum filter tube 4 through a hollow shaft 5 with a flange, and the vacuum filter tube 4 is connected to condensation recovery. 24, the con...

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Abstract

The invention discloses a rotary microwave vacuum dryer, which comprises a bracket (11) with an operation panel (17), a microwave oven body (2) with a microwave generator (1), and a furnace with a handle (20) on the furnace door The door (23), the microwave oven body (2) is provided with a material holding chamber (3), and the vacuum suction filter tube (4) with a filter head (22) is established in the holding material chamber (3), and the material holding chamber ( One end of 3) is connected to the vacuum suction filter tube (4), and the vacuum suction filter tube (4) is connected to the condensation recovery device (24), and the condensation recovery device (24) is connected to the vacuum pump (25), and a vacuum is set on the vacuum suction filtration tube (4). Table (7), a temperature sensor (8) is arranged in the vacuum suction filter pipe (4), the other end of the material holding cavity (3) is connected to the shaft (14), and the shaft (14) is connected to the frequency conversion motor (13), and the material holding The lower end of the cavity (3) is provided with a material inlet and outlet (12). The invention has the advantages of simple structure, high drying efficiency, uniform material components without segregation, and is especially suitable for the vacuum drying and granulation process of slurry in the field of positive electrode materials for lithium-ion batteries.

Description

Technical field: [0001] The invention relates to a rotary microwave vacuum dryer, which is suitable for drying treatment of materials in the fields of heat-sensitive chemical industry, food, pharmaceuticals, etc., and particularly relates to the vacuum drying and granulation process of slurry after liquid-phase mechanical ball milling of raw materials in the field of positive electrode materials of lithium-ion batteries . Background technique: [0002] Vacuum drying is widely used in the field of lithium ion battery cathode material preparation. The preparation process of lithium-ion battery cathode materials generally requires uniform mixing of raw materials, adding a large amount of organic solvents such as ethanol or acetone for liquid-phase mechanical grinding to form a slurry, and then vacuum drying the slurry, while recovering the solvent to form a precursor. The precursor is calcined at high temperature to generate LiCoO 2 , LiMn 2 o 4 or LiFePO 4 and other batte...

Claims

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Application Information

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IPC IPC(8): F26B11/04F26B23/08F26B25/00
CPCY02P70/10
Inventor 杨志宽黄文杰都立珍程元胜盖腾
Owner YANTAI ZHUONENG BATTERY MATERIAL
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