CN-224226217-U - Rare earth powder intelligent driving anti-sticking conveying system

CN224226217UCN 224226217 UCN224226217 UCN 224226217UCN-224226217-U

Abstract

The utility model relates to the technical field of conveying equipment, in particular to an intelligent driving anti-sticking conveying system for rare earth powder, which comprises a feeding device and a screw conveyer, wherein piezoelectric films are respectively covered on the surfaces of a central shaft, screw blades and the inner wall of a shell of the screw conveyer, the accumulation and adhesion conditions of rare earth materials are sensed in real time through the piezoelectric films, mechanical stress is converted into voltage signals by utilizing positive piezoelectric effect, the opening of a valve is dynamically regulated to maintain stable conveying capacity, the phenomenon that the electrolytic efficiency is reduced due to excessive accumulation of rare earth in an electrolytic furnace is prevented, meanwhile, the piezoelectric films of an independent unit are driven to vibrate by inverse piezoelectric effect, the rare earth materials adhered inside the screw conveyer are automatically cleaned, the smooth conveying process is ensured, and the service life of equipment is prolonged. The utility model realizes the automation, the precision and the high efficiency of the rare earth conveying, remarkably improves the production efficiency, reduces the manual intervention and the maintenance cost and makes up the defects of the prior equipment.

Inventors

WANG YAN
WANG ZHOU
LIU SHIQI
HU QINGZHONG
GAO PENG
XU JINYONG
TANG YAN

Assignees

桂林电子科技大学
桂林智工科技有限责任公司

Dates

Publication Date: 20260512
Application Date: 20250516

Claims (4)

1. An intelligent driving anti-sticking conveying system for rare earth powder is characterized in that, The device comprises a feeding device and a screw conveyor, wherein the feeding device is sequentially connected with the screw conveyor; the feeding device comprises a split type feed bin, an upper valve and a lower valve, wherein the upper valve divides the split type feed bin into an upper part and a lower part, and the lower valve is arranged between the split type feed bin and the screw conveyor; The spiral conveyor comprises a motor, a central shaft, a spiral blade and a shell, wherein the surfaces of the inner walls of the central shaft, the spiral blade and the shell are covered with a layer of piezoelectric film, and the piezoelectric film is formed by splicing a plurality of independent units.
2. The intelligent driving anti-sticking conveying system for rare earth powder according to claim 1, wherein, The piezoelectric film independent units on the central shaft are in a parallelogram shape, and the piezoelectric film independent units on the inner wall of the shell are rectangular.
3. The intelligent driving anti-sticking conveying system for rare earth powder according to claim 2, wherein, The shape of the piezoelectric film independent unit on the spiral blade is determined by the side cross-sectional shape of the spiral blade, and the circular ring is divided into six parts to cover different areas of the side surface of each spiral blade.
4. The intelligent driving anti-sticking conveying system for rare earth powder according to claim 3, wherein the intelligent driving anti-sticking conveying system comprises a main body, The two ends of the piezoelectric film in each piezoelectric film independent unit are fixed ends, and a certain gap exists between the middle and the surface.

Description

Rare earth powder intelligent driving anti-sticking conveying system Technical Field The utility model relates to the technical field of conveying equipment, in particular to an intelligent driving anti-sticking conveying system for rare earth powder. Background The rare earth molten salt electrolysis is a process of inducing chemical change in an electrolytic tank by using direct current, and the rare earth metal ions are subjected to redox reaction between a cathode and an anode to obtain electrons at the cathode and reduce the electrons into rare earth metal. This process is typically carried out at an elevated temperature of 1000-1200 ℃ to ensure adequate electrolysis of the rare earth fluoride melt. The rare earth molten salt electrolysis equipment mainly comprises a conveying device and an electrolysis furnace, wherein the conveying device is responsible for continuously and stably conveying raw material rare earth into the electrolysis furnace, and the electrolysis furnace is core equipment for realizing rare earth metal reduction. The traditional rare earth molten salt electrolysis equipment generally adopts an intermittent feeding mode, namely, a certain amount of raw material rare earth is fed into an electrolysis furnace every five minutes. The feeding mode is simple and easy to implement, but has obvious defects. First, intermittent feeding can result in the electrolytic furnace receiving a large amount of rare earth raw material in a short time, resulting in excessive rare earth accumulation. Because the reaction rate in the electrolytic furnace is limited, the electrolysis reaction is not fully performed due to the input of a large amount of rare earth in a short time, so that the efficiency of rare earth molten salt electrolysis is reduced. Secondly, too much rare earth accumulation can also lead to uneven temperature and current distribution in the electrolytic furnace, and further influence the stability of the electrolytic process and the output quality of rare earth metals. In addition, in the conventional blanking process, since the rare earth raw material has a certain viscosity, adhesion easily occurs inside the conveyor. The adhesion phenomenon not only can make the conveying process difficult and reduce the conveying efficiency, but also can increase the abrasion of the spiral sheet and shorten the service life of the spiral conveyor. Over time, the adhering rare earth materials can build up, leading to increased conveyor running resistance, and possibly even equipment failure, increased maintenance costs and production downtime. Disclosure of utility model The utility model aims to provide an intelligent driving anti-sticking conveying system for rare earth powder, which aims to solve the technical problems that the existing rare earth materials are easy to accumulate due to a process, are easy to adhere to the inside of a screw conveyor in the conveying process, and influence the smoothness of the conveying process and the service life of equipment. In order to achieve the aim, the utility model provides an intelligent driving anti-sticking conveying system for rare earth powder, which comprises a feeding device and a screw conveyor, wherein the feeding device is sequentially connected with the screw conveyor; the feeding device comprises a split type feed bin, an upper valve and a lower valve, wherein the upper valve divides the split type feed bin into an upper part and a lower part, and the lower valve is arranged between the split type feed bin and the screw conveyor; The spiral conveyor comprises a motor, a central shaft, a spiral blade and a shell, wherein the surfaces of the inner walls of the central shaft, the spiral blade and the shell are covered with a layer of piezoelectric film, and the piezoelectric film is formed by splicing a plurality of independent units. The piezoelectric film independent units on the central shaft are in a parallelogram shape, and the piezoelectric film independent units on the inner wall of the shell are rectangular. The shape of the piezoelectric film independent unit on the spiral blade is determined by the side section shape of the spiral blade, and the circular ring is divided into six parts to cover different areas of the side surface of each spiral blade. Wherein, the two ends of the piezoelectric film in each piezoelectric film independent unit are fixed ends, and a certain gap exists between the middle and the surface. The utility model provides an intelligent driving anti-sticking conveying system for rare earth powder, which comprises a feeding device and a screw conveyor, wherein piezoelectric films are respectively covered on the surfaces of a central shaft, a screw blade and the inner wall of a shell of the screw conveyor, the accumulation and adhesion conditions of rare earth materials are sensed in real time through the piezoelectric films, mechanical stress is converted into voltage signals by utilizing positive piezoelectric e