Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Short-process preparation method of graphite and graphite product
The invention discloses a short-process preparation method of graphite and a graphite product, and belongs to the field of graphite carbon. According to the preparation method, green petroleum coke is used as a raw material, the self-sintering property of the raw material is utilized, and the material is prepared through the four procedures of raw material crushing and grinding, forming, roasting and graphitizing. The processes of raw material calcination, grinding, mixing and kneading, sheet rolling, secondary grinding, multiple roasting, multiple dipping and the like are omitted, the technological process is greatly simplified, the production period is shortened, and the production cost is reduced. In addition, compressed volatile gas generated by synchronous roasting in the other furnace is introduced in the roasting process, so that the pressure in the furnace and the concentration of the volatile gas are improved. The escape of volatile components in the furnace is inhibited, and the effect of increasing the coking value of the green body is achieved; meanwhile, compressed volatile component gas permeates into internal pores of the green body and is condensed and precipitated along with temperature rise, so that a gas-phase impregnation effect is achieved. The compactness degree of the green body is greatly improved, and the prepared high-strength graphite has good mechanical performance.
本发明公开了一种石墨的短流程制备方法及石墨制品，属于石墨炭素领域。本发明的制备方法，以生石油焦为原料，利用原料的自烧结性，经过原料破碎磨粉、成型、焙烧、石墨化四个工序制得。省去了原料煅烧、磨粉、混捏、轧片、二次磨粉、多次焙烧和多次浸渍等工序，极大的简化了工艺流程，缩短生产周期，降低生产成本。另外，在焙烧过程中通入另一炉同步焙烧产生的压缩挥发分气体，提高了炉内压力和挥发分气体浓度。不仅抑制了炉内挥发分的逸出，起到提高坯体结焦值作用；同时，压缩挥发分气体渗透到坯体内部孔隙并随着温度升高缩聚沉淀下来，起到气相浸渍效果。使得坯体的致密度化程度得到很大提升，所制高强石墨具有很好的机械性能。
Short-process preparation method of graphite and graphite product
The invention discloses a short-process preparation method of graphite and a graphite product, and belongs to the field of graphite carbon. According to the preparation method, green petroleum coke is used as a raw material, the self-sintering property of the raw material is utilized, and the material is prepared through the four procedures of raw material crushing and grinding, forming, roasting and graphitizing. The processes of raw material calcination, grinding, mixing and kneading, sheet rolling, secondary grinding, multiple roasting, multiple dipping and the like are omitted, the technological process is greatly simplified, the production period is shortened, and the production cost is reduced. In addition, compressed volatile gas generated by synchronous roasting in the other furnace is introduced in the roasting process, so that the pressure in the furnace and the concentration of the volatile gas are improved. The escape of volatile components in the furnace is inhibited, and the effect of increasing the coking value of the green body is achieved; meanwhile, compressed volatile component gas permeates into internal pores of the green body and is condensed and precipitated along with temperature rise, so that a gas-phase impregnation effect is achieved. The compactness degree of the green body is greatly improved, and the prepared high-strength graphite has good mechanical performance.
本发明公开了一种石墨的短流程制备方法及石墨制品，属于石墨炭素领域。本发明的制备方法，以生石油焦为原料，利用原料的自烧结性，经过原料破碎磨粉、成型、焙烧、石墨化四个工序制得。省去了原料煅烧、磨粉、混捏、轧片、二次磨粉、多次焙烧和多次浸渍等工序，极大的简化了工艺流程，缩短生产周期，降低生产成本。另外，在焙烧过程中通入另一炉同步焙烧产生的压缩挥发分气体，提高了炉内压力和挥发分气体浓度。不仅抑制了炉内挥发分的逸出，起到提高坯体结焦值作用；同时，压缩挥发分气体渗透到坯体内部孔隙并随着温度升高缩聚沉淀下来，起到气相浸渍效果。使得坯体的致密度化程度得到很大提升，所制高强石墨具有很好的机械性能。
Short-process preparation method of graphite and graphite product
一种石墨的短流程制备方法及石墨制品
LI TAO (Autor:in) / WANG WEI (Autor:in) / SHEN BAOJIN (Autor:in) / LI XIAOXIANG (Autor:in)
21.11.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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