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Preparation process of nuclear-grade isostatic pressing graphite for molten salt reactor
The invention relates to the technical field of graphite preparation, and discloses a preparation process of nuclear-grade isostatic graphite for a molten salt reactor, which comprises the following steps: slowly adding nearly spherical MCMBs with the particle size of less than 4 mu m into an isostatic pressing mold, compacting, sealing, and if MCMBs with different particle size ratios are adopted, uniformly mixing in a mechanical manner before mold filling; compared with a method for preparing the nuclear-grade graphite special for the molten salt reactor by adding a chemical vapor deposition coating after multiple dipping-roasting cycles, the preparation process of the nuclear-grade isostatic pressing graphite for the molten salt reactor has the advantages that raw materials are uniformly mixed and then are directly put into a cold isostatic pressing machine to be pressurized to prepare the nuclear-grade graphite special for the molten salt reactor; the method has the advantages that the method is simple in technological process, short in period, low in energy consumption and low in cost, and the method can be used for preparing the nuclear-grade isostatic-pressed graphite products by the aid of the method for preparing the nuclear-grade isostatic-pressed graphite products by the aid of the method for preparing the nuclear-grade isostatic-pressed graphite products by the aid of the method for preparing the nuclear-grade isostatic-pressed graphite.
本发明涉及石墨制备技术领域，且公开了一种熔盐反应堆用核级等静压石墨的制备工艺，包括以下步骤：将近球形、粒径小于4μm的MCMBs缓慢加入等静压成型模具中，振实后密封，若采用不同粒径配比的MCMBs则需在装模前用机械方式混合均匀；该熔盐反应堆用核级等静压石墨的制备工艺相较于经过多次浸渍‑焙烧循环之后，再加以化学气相沉积镀层来制备专用于熔盐反应堆的核级石墨的方法，该发明工艺在进行原料混合均匀后，直接置入冷等静压机中进行加压制成，再放入不锈钢桶中加入黄沙压紧焙烧进行自然冷却，最后装入石墨化炉中处理自然冷却后即可得到核级等静压石墨成品，该发明工艺流程更简单，周期更短，能耗、成本更低。
Preparation process of nuclear-grade isostatic pressing graphite for molten salt reactor
The invention relates to the technical field of graphite preparation, and discloses a preparation process of nuclear-grade isostatic graphite for a molten salt reactor, which comprises the following steps: slowly adding nearly spherical MCMBs with the particle size of less than 4 mu m into an isostatic pressing mold, compacting, sealing, and if MCMBs with different particle size ratios are adopted, uniformly mixing in a mechanical manner before mold filling; compared with a method for preparing the nuclear-grade graphite special for the molten salt reactor by adding a chemical vapor deposition coating after multiple dipping-roasting cycles, the preparation process of the nuclear-grade isostatic pressing graphite for the molten salt reactor has the advantages that raw materials are uniformly mixed and then are directly put into a cold isostatic pressing machine to be pressurized to prepare the nuclear-grade graphite special for the molten salt reactor; the method has the advantages that the method is simple in technological process, short in period, low in energy consumption and low in cost, and the method can be used for preparing the nuclear-grade isostatic-pressed graphite products by the aid of the method for preparing the nuclear-grade isostatic-pressed graphite products by the aid of the method for preparing the nuclear-grade isostatic-pressed graphite products by the aid of the method for preparing the nuclear-grade isostatic-pressed graphite.
本发明涉及石墨制备技术领域，且公开了一种熔盐反应堆用核级等静压石墨的制备工艺，包括以下步骤：将近球形、粒径小于4μm的MCMBs缓慢加入等静压成型模具中，振实后密封，若采用不同粒径配比的MCMBs则需在装模前用机械方式混合均匀；该熔盐反应堆用核级等静压石墨的制备工艺相较于经过多次浸渍‑焙烧循环之后，再加以化学气相沉积镀层来制备专用于熔盐反应堆的核级石墨的方法，该发明工艺在进行原料混合均匀后，直接置入冷等静压机中进行加压制成，再放入不锈钢桶中加入黄沙压紧焙烧进行自然冷却，最后装入石墨化炉中处理自然冷却后即可得到核级等静压石墨成品，该发明工艺流程更简单，周期更短，能耗、成本更低。
Preparation process of nuclear-grade isostatic pressing graphite for molten salt reactor
一种熔盐反应堆用核级等静压石墨的制备工艺
WANG HONGMIN (author) / WANG ZHEN (author) / YUAN DONGJIE (author) / LI FAJUN (author) / WANG CHUQIAO (author) / ZHAO QI (author) / ZHOU XUERUI (author) / LIU SHANSHAN (author) / ZHAO DAN (author) / WANG PENG (author)
2024-06-14
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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