Micro-cavity liquid-phase shearing device for preparing quasi-two-dimensional materials

Patent metadata

Field	Value
Publication number	US-12377476-B2
Application number	US-202217871802-A
Country	US
Kind code	B2
Filing date	Jul 22, 2022
Priority date	Dec 22, 2020
Publication date	Aug 5, 2025
Grant date	Aug 5, 2025

Abstract

A micro-cavity liquid-phase shearing device for preparing quasi-two-dimensional materials includes a movable plate system, a fixed plate system, a feed liquid external circulation system, a driven gear system and a charging barrel. The movable plate system includes a movable plate unit and a driving gear. The fixed plate system includes a fixed plate unit and a support. A tank of the movable plate unit has a primary shear cavity, an annular micro-gap between a movable plate of the movable plate unit and a fixed plate of the fixed plate unit is defined as a secondary shear micro-cavity. The feed liquid, which flows outside the feed pipe through the liquid discharge port thereof, is primarily sheared in the primary shear cavity by the movable plate system, and then is secondarily sheared in the secondary shear micro-cavity by the movable plate and the fixed plate, and then returns to the charging barrel.

First claim

What is claimed is:

1. A micro-cavity liquid-phase shearing device for preparing quasi-two-dimensional materials, which comprises a movable plate system, a fixed plate system, a feed liquid external circulation system, a driven gear system and a charging barrel, wherein:
a feed liquid is provided within the charging barrel;
the movable plate system comprises a movable plate unit and a driving gear;
the driven gear system comprises multiple driven gears;
the movable plate unit, which is provided within the charging barrel, comprises a tank and a movable plate around an opening of the tank;
the driving gear is installed within the tank through a driving shaft, the driven gears are engaged with an external side of the driving gear, a lower end of the driving shaft is connected with a power machine, the movable plate unit is fixedly connected with the driving shaft, the driving shaft drives the driving gear and the movable plate unit to rotate;
the fixed plate system comprises a fixed plate unit and a support, wherein the support is installed above the charging barrel, the fixed plate unit is provided under the support, the fixed plate unit comprises an annular fixed plate which is provided above the movable plate in parallel;
the feed liquid external circulation system comprises a microfluidic pump, a discharge pipe and a feed pipe, wherein two ends of the discharge pipe are connected with a liquid discharge port of the charging barrel and a liquid feed port of the microfluidic pump, one end of the feed pipe is connected with a liquid discharge port of the microfluidic pump, another end of the feed pipe is provided above the driving gear;
the tank has a primary shear cavity, an annular micro-gap between the movable plate and the fixed plate is defined as a secondary shear micro-cavity;
the feed liquid, which flows outside the feed pipe through the liquid discharge port thereof, is primarily sheared in the primary shear cavity by the movable plate system, and then is secondarily sheared in the secondary shear micro-cavity by the movable plate and the fixed plate, and then returns to the charging barrel.

2. The micro-cavity liquid-phase shearing device according to claim 1 , wherein the fixed plate system further comprises an annular micro-gap adjustment device which comprises multiple fasten screws and multiple precision differential screw devices, wherein two ends of the annular fixed plate after being upwardly bent are connected with the support through the multiple circumferentially evenly distributed fasten screws, upper ends of the multiple fasten screws extend outside the support and are connected with the precision differential screw devices respectively.

3. The micro-cavity liquid-phase shearing device according to claim 2 , wherein multiple capacitance micro-ranging devices are inserted into a lower end surface of the annular fixed plate.

4. The micro-cavity liquid-phase shearing device according to claim 3 , wherein the multiple capacitance micro-ranging devices are circumferentially evenly distributed at the fixed plate.

5. The micro-cavity liquid-phase shearing device according to claim 1 , wherein three circumferentially evenly distributed driven gears are engaged with the external side of the driving gear.

6. The micro-cavity liquid-phase shearing device according to claim 5 , wherein the three driven gears are sleeved on a lower end of three driven shafts respectively, the three driven shafts are limited to the support through bearings.

7. The micro-cavity liquid-phase shearing device according to claim 5 , wherein the three driven gears are sleeved on a lower end of three driven shafts respectively, the three driven shafts are limited to the support through bearings.

8. The micro-cavity liquid-phase shearing device according to claim 1 , wherein the power machine is a high-speed motor, the lower end of the driving shaft extends outside a bottom of the charging barrel and is connected with a motor shaft of the high-speed motor.

9. The micro-cavity liquid-phase shearing device according to claim 8 , wherein a protruding portion is provided at the bottom of the charging barrel, and a bearing support is provided between the driving shaft and a side wall of the protruding portion.

10. The micro-cavity liquid-phase shearing device according to claim 1 , wherein the support is fixedly connected with an upper end of the charging barrel through a fixing bolt set.

Assignees

• Univ Nantong

Inventors

• Yuan Guoqiu
• Mo Yamei
• Cao Min
• Zhong Chonggui
• Liu Dexin
• Jiang Chunyan

Classifications

• B23D33/02

  Arrangements for holding, guiding, and/or feeding work during the operation · CPC title

• C01B32/19 Primary

  by exfoliation · CPC title

• B02C18/00

  Disintegrating by knives or other cutting or tearing members which chop material into fragments {(tree stump comminutors A01G23/067)} · CPC title

• B23D15/14 Primary

  actuated by fluid or gas pressure · CPC title