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Method for synthesizing silicon nitride powder through continuous combustion
The invention provides a method for synthesizing silicon nitride powder through continuous combustion, and relates to the technical field of silicon nitride powder synthesis, and the method comprises the following steps: processing a silicon block into silicon powder with a certain particle size by a raw material conveyor for later use, and monitoring the storage amount of the silicon powder in the raw material conveyor in real time through a raw material monitoring system; the raw material conveyor sequentially conveys silicon powder and nitrogen in a certain proportion into a plurality of reaction cavities of the combustion furnace; and after the reaction is finished, each reaction cavity sequentially outputs the resultant silicon nitride into a collecting device. The combustion furnace is divided into a plurality of reaction cavities, each reaction cavity carries out silicon nitride synthesis reaction, continuous heating of the combustion furnace is guaranteed, energy is saved, meanwhile, due to the fact that silicon powder and nitrogen in each reaction cavity are small in amount and can make full contact, the silicon nitride synthesis reaction is accelerated, the synthesis efficiency is improved, and the production cost is reduced. The raw material monitoring system can monitor the storage amount of the silicon powder in the raw material conveyor in real time, and when the storage amount of the silicon powder in the raw material conveyor is lower than a preset value, the silicon powder is automatically supplemented.
本发明提供了一种连续式燃烧合成氮化硅粉体的方法，涉及氮化硅粉体合成技术领域，包括原料输送机将硅块加工为具有一定径粒的硅粉备用，并通过原料监测系统实时监测原料输送机内硅粉的储存量；原料输送机向燃烧炉的若干反应腔内依次输送一定比例的硅粉和氮气；反应结束后每个反应腔依次将生成物氮化硅输出至收集装置内。本发明将燃烧炉分为若干个反应腔每个反应腔各自进行氮化硅合成反应，保证了燃烧炉的持续加热，节约了能源，同时由于每个反应腔内硅粉和氮气的量较少可以充分接触，加速了氮化硅合成反应的进行，提高了合成效率，原料监测系统可以实时监测原料输送机内硅粉的储存量，当原料输送机内硅粉的储存量低于预设值时自动补充硅粉。
Method for synthesizing silicon nitride powder through continuous combustion
The invention provides a method for synthesizing silicon nitride powder through continuous combustion, and relates to the technical field of silicon nitride powder synthesis, and the method comprises the following steps: processing a silicon block into silicon powder with a certain particle size by a raw material conveyor for later use, and monitoring the storage amount of the silicon powder in the raw material conveyor in real time through a raw material monitoring system; the raw material conveyor sequentially conveys silicon powder and nitrogen in a certain proportion into a plurality of reaction cavities of the combustion furnace; and after the reaction is finished, each reaction cavity sequentially outputs the resultant silicon nitride into a collecting device. The combustion furnace is divided into a plurality of reaction cavities, each reaction cavity carries out silicon nitride synthesis reaction, continuous heating of the combustion furnace is guaranteed, energy is saved, meanwhile, due to the fact that silicon powder and nitrogen in each reaction cavity are small in amount and can make full contact, the silicon nitride synthesis reaction is accelerated, the synthesis efficiency is improved, and the production cost is reduced. The raw material monitoring system can monitor the storage amount of the silicon powder in the raw material conveyor in real time, and when the storage amount of the silicon powder in the raw material conveyor is lower than a preset value, the silicon powder is automatically supplemented.
本发明提供了一种连续式燃烧合成氮化硅粉体的方法，涉及氮化硅粉体合成技术领域，包括原料输送机将硅块加工为具有一定径粒的硅粉备用，并通过原料监测系统实时监测原料输送机内硅粉的储存量；原料输送机向燃烧炉的若干反应腔内依次输送一定比例的硅粉和氮气；反应结束后每个反应腔依次将生成物氮化硅输出至收集装置内。本发明将燃烧炉分为若干个反应腔每个反应腔各自进行氮化硅合成反应，保证了燃烧炉的持续加热，节约了能源，同时由于每个反应腔内硅粉和氮气的量较少可以充分接触，加速了氮化硅合成反应的进行，提高了合成效率，原料监测系统可以实时监测原料输送机内硅粉的储存量，当原料输送机内硅粉的储存量低于预设值时自动补充硅粉。
Method for synthesizing silicon nitride powder through continuous combustion
一种连续式燃烧合成氮化硅粉体的方法
ZENG XIAOFENG (author) / LI YONGQUAN (author)
2023-09-01
Patent
Electronic Resource
Chinese
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