A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Binder-free powder granulating and tabletting method
The invention provides a binder-free powder granulating and tabletting method which comprises the steps: uniformly mixing powder without adding a binder, performing primary sieving, calcining, performing secondary sieving, performing dry mixing to obtain tabletting powder, then tabletting the tabletting powder by using an automatic tabletting machine, and finally heating and sintering, wherein the deviation between the actual weight of the sintered tablet and the required weight is 1% or below, and the deviation between the actual size and the average size is 1% or below. The powder is mixed for multiple times, so that the mixing uniformity of the raw materials is ensured; the binder is not added into the powder, so that the powder is higher in purity and more accurate in weight; good particle size distribution of powder is formed through primary screening, powder with different particle sizes is distributed more uniformly after calcination, secondary screening and dry mixing, the tabletting consistency is improved, glue discharging is not needed in the sintering process, the powder is subjected to a solid-phase reaction only through sintering, the deviation between the actual weight of the sintered tablet and the required weight is smaller than or equal to 1%, the deviation between the actual size and the average size is less than or equal to 1%, and the tablet with high precision is prepared.
本发明提出了一种无粘结剂的粉体造粒压片方法，粉体不加入粘结剂混合均匀后一次过筛，然后进行煅烧再二次过筛，然后干混后得到压片粉体，接着将压片粉体使用自动压片机压片，最后升温烧结，烧结后的压片实际重量与需求重量偏差1％以下，实际尺寸与平均尺寸偏差1％以下。本发明的粉体进行多次混合，保证了原料混合的均匀性；粉体中不添加粘结剂，使得粉体纯度更高，重量更精准；一次过筛使粉体形成良好的粒度分布，煅烧、二次过筛和干混后使得不同粒度粉体分布得更为均匀，提高了压片的一致性，烧结过程中无需排胶，只需烧结使粉体进行固相反应，烧结后的片材实际重量与需求重量偏差≤1％，实际尺寸与平均尺寸偏差≤1％，制成了高精度的片材。
Binder-free powder granulating and tabletting method
The invention provides a binder-free powder granulating and tabletting method which comprises the steps: uniformly mixing powder without adding a binder, performing primary sieving, calcining, performing secondary sieving, performing dry mixing to obtain tabletting powder, then tabletting the tabletting powder by using an automatic tabletting machine, and finally heating and sintering, wherein the deviation between the actual weight of the sintered tablet and the required weight is 1% or below, and the deviation between the actual size and the average size is 1% or below. The powder is mixed for multiple times, so that the mixing uniformity of the raw materials is ensured; the binder is not added into the powder, so that the powder is higher in purity and more accurate in weight; good particle size distribution of powder is formed through primary screening, powder with different particle sizes is distributed more uniformly after calcination, secondary screening and dry mixing, the tabletting consistency is improved, glue discharging is not needed in the sintering process, the powder is subjected to a solid-phase reaction only through sintering, the deviation between the actual weight of the sintered tablet and the required weight is smaller than or equal to 1%, the deviation between the actual size and the average size is less than or equal to 1%, and the tablet with high precision is prepared.
本发明提出了一种无粘结剂的粉体造粒压片方法，粉体不加入粘结剂混合均匀后一次过筛，然后进行煅烧再二次过筛，然后干混后得到压片粉体，接着将压片粉体使用自动压片机压片，最后升温烧结，烧结后的压片实际重量与需求重量偏差1％以下，实际尺寸与平均尺寸偏差1％以下。本发明的粉体进行多次混合，保证了原料混合的均匀性；粉体中不添加粘结剂，使得粉体纯度更高，重量更精准；一次过筛使粉体形成良好的粒度分布，煅烧、二次过筛和干混后使得不同粒度粉体分布得更为均匀，提高了压片的一致性，烧结过程中无需排胶，只需烧结使粉体进行固相反应，烧结后的片材实际重量与需求重量偏差≤1％，实际尺寸与平均尺寸偏差≤1％，制成了高精度的片材。
Binder-free powder granulating and tabletting method
一种无粘结剂的粉体造粒压片方法
MAO ZHAOZHAO (author) / LI ZHITAO (author) / ZHOU YOU (author) / CHEN GANG (author) / XIONG LIANGMING (author) / DU LIHUA (author)
2021-09-14
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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