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Roasting and charging method for improving performance uniformity of isostatic pressing graphite product
The invention discloses a roasting and charging method for improving the performance uniformity of an isostatic pressing graphite product, and belongs to the technical field of graphite production. Comprising the following steps: S1, laying first metallurgical coke at the bottom of a steel drum; s2, loading the green body on the top of metallurgical coke; s3, petroleum coke is poured between the green body and the inner wall of the steel drum till the petroleum coke is flush with the top wall of the green body; s4, pouring a second kind of metallurgical coke above the green body until the opening of the steel drum is flush; s5, roasting the steel drum in the step S4; wherein the granularity of the first metallurgical coke is greater than that of the second metallurgical coke. The second metallurgical coke has a capillary effect and has an adsorption effect on steam generated by the liquid asphalt, so that the sinking resistance of the liquid asphalt due to the gravity effect is larger; the first kind of metallurgical coke ensures that sinking asphalt discharges volatile components through a smooth channel to reduce coking, so that the coking value is artificially reduced, the inconsistency of volume density can be bidirectionally reduced by increasing the upper coking value of the product and reducing the lower coking value of the product, and the performance uniformity of the product is improved.
本发明公开了一种提高等静压石墨产品性能均匀性的焙烧装料方法，属于石墨生产技术领域；包括S1将第一种冶金焦铺设于钢桶底部；S2将生坯装在冶金焦顶部；S3在生坯和钢桶内壁之间倒入石油焦，直至石油焦与生坯顶壁齐平；S4在生坯上方倒入第二种冶金焦至钢桶口齐平；S5将S4中的钢桶进行焙烧；其中，第一种冶金焦的粒度大于第二种冶金焦的粒度。本发明中第二种冶金焦具有毛细管效应，对于液态沥青产生的蒸汽具有吸附效应，使得液态沥青因重力效应下沉的阻力更大；第一种冶金焦确保下沉的沥青以顺畅的通道将挥发分外排而减少结焦，从而人为降低结焦值，通过增加产品上部结焦值和降低产品下部结焦值，能够双向拉近体密的不一致性，提高产品性能均匀性。
Roasting and charging method for improving performance uniformity of isostatic pressing graphite product
The invention discloses a roasting and charging method for improving the performance uniformity of an isostatic pressing graphite product, and belongs to the technical field of graphite production. Comprising the following steps: S1, laying first metallurgical coke at the bottom of a steel drum; s2, loading the green body on the top of metallurgical coke; s3, petroleum coke is poured between the green body and the inner wall of the steel drum till the petroleum coke is flush with the top wall of the green body; s4, pouring a second kind of metallurgical coke above the green body until the opening of the steel drum is flush; s5, roasting the steel drum in the step S4; wherein the granularity of the first metallurgical coke is greater than that of the second metallurgical coke. The second metallurgical coke has a capillary effect and has an adsorption effect on steam generated by the liquid asphalt, so that the sinking resistance of the liquid asphalt due to the gravity effect is larger; the first kind of metallurgical coke ensures that sinking asphalt discharges volatile components through a smooth channel to reduce coking, so that the coking value is artificially reduced, the inconsistency of volume density can be bidirectionally reduced by increasing the upper coking value of the product and reducing the lower coking value of the product, and the performance uniformity of the product is improved.
本发明公开了一种提高等静压石墨产品性能均匀性的焙烧装料方法，属于石墨生产技术领域；包括S1将第一种冶金焦铺设于钢桶底部；S2将生坯装在冶金焦顶部；S3在生坯和钢桶内壁之间倒入石油焦，直至石油焦与生坯顶壁齐平；S4在生坯上方倒入第二种冶金焦至钢桶口齐平；S5将S4中的钢桶进行焙烧；其中，第一种冶金焦的粒度大于第二种冶金焦的粒度。本发明中第二种冶金焦具有毛细管效应，对于液态沥青产生的蒸汽具有吸附效应，使得液态沥青因重力效应下沉的阻力更大；第一种冶金焦确保下沉的沥青以顺畅的通道将挥发分外排而减少结焦，从而人为降低结焦值，通过增加产品上部结焦值和降低产品下部结焦值，能够双向拉近体密的不一致性，提高产品性能均匀性。
Roasting and charging method for improving performance uniformity of isostatic pressing graphite product
一种提高等静压石墨产品性能均匀性的焙烧装料方法
DENG HAITAO (author) / YANG HUAFENG (author) / YU TAO (author) / LIANG BIN (author) / XU HOUHAI (author)
2024-12-20
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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