CN-121972647-A - Granulating device for liquid high-purity gallium

CN121972647ACN 121972647 ACN121972647 ACN 121972647ACN-121972647-A

Abstract

The application belongs to the technical field of high-purity gallium granulation, and particularly relates to a liquid high-purity gallium granulation device. The granulating device for the liquid high-purity gallium comprises a granulating cylinder, a precooling pipeline, a feeding pipe, a first condensing coil, a collecting assembly and a first condensing assembly, wherein inert gas is filled in the granulating cylinder, the granulating cylinder is provided with a discharging area, a low-temperature area and a product area, the discharging area, the low-temperature area and the product area are sequentially arranged from top to bottom along the height direction of the granulating cylinder, the precooling pipeline is arranged in the discharging area, the feeding pipe penetrates through the discharging area and is detachably communicated with the precooling pipeline, the first condensing coil is arranged on the inner wall of the low-temperature area, and the collecting assembly is at least partially arranged in the product area. The granulating device for liquid high-purity gallium can rapidly prepare high-purity gallium particles.

Inventors

LI DONGXU
LI SHUGUAN
XU HUIJIE
SHEN LE
ZHAO YAWEI
QIN ZENGYAN
ZHANG JIEJING
CAO MENGYANG
CHEN QIHANG

Assignees

中铝郑州有色金属研究院有限公司

Dates

Publication Date: 20260505
Application Date: 20260205

Claims (10)

1. A granulation device for liquid high purity gallium, comprising: The granulating cylinder is filled with inert gas and is provided with a discharging area, a low-temperature area and a product area, and the discharging area, the low-temperature area and the product area are sequentially arranged from top to bottom along the height direction of the granulating cylinder; the precooling pipeline is arranged in the discharging area; The feeding pipe is arranged in the discharging area in a penetrating manner and is detachably communicated with the pre-cooling pipeline; The first condensing coil is arranged on the inner wall of the low-temperature area; And the collecting assembly is at least partially arranged in the product area.
2. The granulation apparatus of liquid high purity gallium according to claim 1, wherein said feed tube is surrounded by a heat trace tape.
3. Granulation apparatus of liquid high purity gallium according to claim 1, wherein said feed pipe is provided with a flow rate regulating valve.
4. A granulation apparatus of liquid high purity gallium according to any one of claims 1 to 3, wherein said pre-cooling line comprises: The spiral pipe is arranged in the discharging area and is detachably communicated with the feeding pipe; the second condensing coil is wound outside the spiral pipe; The first communication pipe is communicated with the end part of the spiral pipe, which is far away from the feeding pipe.
5. The granulation apparatus of liquid high purity gallium according to claim 4, wherein said first communication tube comprises: a first tube in communication with an end of the spiral tube remote from the feed tube; a second tube in angled communication with an end of the first tube remote from the spiral tube; Wherein the first tube and the second tube are both arc-shaped.
6. A liquid high purity gallium granulating apparatus according to any one of claims 1-3, wherein said liquid high purity gallium granulating apparatus further comprises: a plurality of air inlet pipelines communicated with the low-temperature area; the air outlet pipelines are communicated with the low-temperature area; The second communication pipelines are arranged outside the granulating cylinder and correspond to the air outlet pipelines and the air inlet pipelines one by one, one end of each second communication pipeline is communicated with the corresponding air outlet pipeline, and the other end of each second communication pipeline is communicated with the corresponding air inlet pipeline.
7. A liquid high purity gallium granulating apparatus according to any one of claims 1-3, wherein said liquid high purity gallium granulating apparatus further comprises: And the third condensing coil is arranged on the inner wall of the product area.
8. A granulation apparatus of liquid high purity gallium according to any one of claims 1 to 3, wherein said collection assembly comprises: The vacuum transition cabin is communicated with the product area; A plurality of collection hoppers disposed within the product zone; The conveying mechanism is arranged in the product area and the vacuum transition cabin; The collecting bottles are arranged on the conveying mechanism and correspond to the collecting funnels one by one, and the collecting bottles are positioned below the corresponding collecting funnels.
9. The granulation device of liquid high purity gallium according to claim 8, wherein the collection assembly further comprises a plurality of plugging mechanisms, a plurality of the plugging mechanisms being in one-to-one correspondence with a plurality of the collection hoppers, the plugging mechanisms comprising: a first driver connected to the collection funnel; The plugging piece is connected with the first driver and can be switched between a first position and a second position; The first pressure sensor is arranged on the plugging piece and used for acquiring the weight value of the particles in the collecting funnel; a first controller electrically connected to the first pressure sensor and the first driver; The timer is electrically connected with the controller; The first controller receives the weight value sent by the first pressure sensor, when the weight value is larger than or equal to a first set weight value, the first controller sends a first driving signal to the first driver, the first driver drives the plugging piece to act, so that the plugging piece is located at the first position to open the discharge port of the collecting hopper, after the plugging piece is located at the first position, the first controller receives time sent by the timer, when the time is larger than or equal to the set time, the first controller sends a second driving signal to the first driver, and the first driver drives the plugging piece to act, so that the plugging piece is located at the second position to close the discharge port of the collecting hopper.
10. The granulation device of liquid high purity gallium according to claim 8, wherein said transport mechanism further comprises: A first belt roller positioned within the product zone; The second belt roller is positioned in the vacuum transition cabin; the shipping belt is sleeved on the first belt roller and the second belt roller; A second driver connected to the first belt roller or the second belt roller; The supporting piece is connected with the product area and is arranged in the shipping belt; the second pressure sensor is arranged on the supporting piece and is contacted with the shipping belt, and is used for acquiring the bearing weight value of the shipping belt; a second controller electrically connected to the second driver and the second pressure sensor; The second controller receives the bearing weight value sent by the second pressure sensor, and when the weight value is larger than or equal to a second set weight value, the second controller sends a third driving signal to the second driver, and the second driver drives the first belt roller and the second belt roller to act, so that the shipping belt acts to convey the collecting bottle to the vacuum transition cabin.

Description

Granulating device for liquid high-purity gallium Technical Field The application belongs to the technical field of high-purity gallium granulation, and particularly relates to a liquid high-purity gallium granulation device. Background Gallium metal is a key rare-earth metal, and has the remarkable characteristics of extremely low melting point (only 29.76 ℃), liquid state at normal temperature and excellent photoelectric and chemical properties of derivatives. These characteristics make it a key material basis for driving advances in the semiconductor industry, new energy fields, advanced materials directions, chemical innovations, and medical technology. The high-purity gallium particles are high-purity gallium particles with the purity of more than or equal to 99.9999 percent (grade 6N) and the particle size of generally 1-10 mm, have the characteristics of high sphericity (more than 90 percent) and low oxygen content (less than 1 ppm), and are specially designed for high-end semiconductor processes. The unique low-melting point (29.8 ℃) and high-boiling point (2403 ℃) characteristics of the gallium can be stored in a solid state at room temperature and melted rapidly at low temperature, so that the high-purity gallium particles are perfectly matched with the requirements of a semiconductor automatic production line on accurate metering of raw materials (error < 0.1%) and low pollution. As a key basic material of a compound semiconductor, the material is mainly used for preparing radio frequency/photoelectric devices such as gallium arsenide (GaAs), gallium nitride (GaN) and the like, and particularly used as a source material in a Molecular Beam Epitaxy (MBE) process, and the performance yield of quantum devices and lasers is directly affected. However, in the related art, the gallium is cooled by using the liquid as a cooling source, and trace impurities are introduced into the gallium by the cooling liquid, and are difficult to remove, so that the purity of gallium particles is affected. Disclosure of Invention In order to solve the technical problems, the invention provides a granulating device for liquid high-purity gallium, which aims to at least solve the technical problems that the liquid is used as a cooling source to cool down the gallium, the cooling liquid introduces trace impurities into the gallium, the trace impurities are difficult to remove, and the purity of gallium particles is affected to a certain extent. The technical scheme of the invention is as follows: The granulating device for the liquid high-purity gallium comprises a granulating cylinder, a precooling pipeline, a feeding pipe, a first condensing coil, a collecting assembly and a cooling assembly, wherein inert gas is filled in the granulating cylinder, the granulating cylinder is provided with a discharging area, a low-temperature area and a product area, the discharging area, the low-temperature area and the product area are sequentially arranged from top to bottom along the height direction of the granulating cylinder, the precooling pipeline is arranged in the discharging area, the feeding pipe penetrates through the discharging area and is detachably communicated with the precooling pipeline, the first condensing coil is arranged on the inner wall of the low-temperature area, and the collecting assembly is at least partially arranged in the product area. In some embodiments, the feed tube is surrounded by a heat trace strip. In some embodiments, the feed tube is provided with a flow rate regulating valve. In some embodiments, the pre-cooling pipeline comprises a spiral pipe, a second condensing coil and a first communicating pipe, wherein the spiral pipe is arranged in the discharging area and is detachably communicated with the feeding pipe, the second condensing coil is wound outside the spiral pipe, and the first communicating pipe is communicated with the end part of the spiral pipe, which is far away from the feeding pipe. In some embodiments, the first communication tube includes a first tube in communication with an end of the helical tube remote from the feed tube, and a second tube in angled communication with an end of the first tube remote from the helical tube, wherein the first tube and the second tube are both arcuate. In some embodiments, the liquid high-purity gallium granulating device further comprises a plurality of air inlet pipelines communicated with the low-temperature area, a plurality of air outlet pipelines communicated with the low-temperature area, and a plurality of second communication pipelines which are arranged outside the granulating cylinder and are in one-to-one correspondence with the air outlet pipelines and the air inlet pipelines, wherein one end of each second communication pipeline is communicated with the corresponding air outlet pipeline, and the other end of each second communication pipeline is communicated with the corresponding air inlet pipeline. In some embodiments, the