本文基于RH脱硫剂、RH脱硫过程和无取向电工钢的应用过程,以脱硫量0.0015%、脱硫剂加入量7.5 kg/t为例,对CaO-CaF_(2)系和铝酸钙系脱硫剂分别进行了碳排放量的测算。测算结果表明:铝酸钙系脱硫剂和CaO-CaF_(2)系脱硫剂生产的碳排放量分...本文基于RH脱硫剂、RH脱硫过程和无取向电工钢的应用过程,以脱硫量0.0015%、脱硫剂加入量7.5 kg/t为例,对CaO-CaF_(2)系和铝酸钙系脱硫剂分别进行了碳排放量的测算。测算结果表明:铝酸钙系脱硫剂和CaO-CaF_(2)系脱硫剂生产的碳排放量分别为2.362 kg CO_(2)/kg和0.788 kg CO_(2)/kg;RH脱硫剂使用过程中,铝酸钙系脱硫剂和CaO-CaF_(2)系脱硫剂使用过程的平均碳排放量增加约为405 kg CO_(2)/t和416 kg CO_(2)/t。本文还针对无取向电工钢在使用过程的碳排放进行了粗略测算。测算数据对阐述RH脱硫工艺的重要性有参考意义。展开更多
通过建立比例1∶5的物理模型,分别研究了吹气流量、吹气孔数、浸渍管插入深度以及真空室内液面高度等参数对210 t RH内钢液混匀过程的影响。同时,研究了不同吹气孔堵塞方式对RH内混匀的影响。结果表明:增大吹气流量使得RH内混匀时间逐...通过建立比例1∶5的物理模型,分别研究了吹气流量、吹气孔数、浸渍管插入深度以及真空室内液面高度等参数对210 t RH内钢液混匀过程的影响。同时,研究了不同吹气孔堵塞方式对RH内混匀的影响。结果表明:增大吹气流量使得RH内混匀时间逐渐降低直至趋于稳定,与吹气流量0.41 m^(3)/h相比,混匀时间降低比例由5.5%增加至37.9%,此后基本保持不变,对应的最佳吹气流量为0.76 m^(3)/h;增加吹气孔数、浸渍管插入深度以及提高真空室内液面高度均能促进RH内钢液的混匀,缩短混匀时间。在8孔吹气条件下,采用下层吹气方式时,混匀时间最短,较单侧吹气方式下混匀时间降低幅度为37.7~56.8 s;在12孔吹气条件下,采用上层堵4孔吹气方式时,混匀时间最短,较单侧吹气方式下混匀时间降低幅度为5.5~21.3 s。展开更多
目的:通过研究RhC、c、E、e抗原在宜昌某医院的分布,结合血型不规则抗体的检出情况,浅析Rh抗原C、c、E、e分型检测的临床意义,提高临床用血安全。方法:对我院2022.07~2023.07期间输血患者和献血员进行血清学ABO血型和Rh抗原C、c、E、e...目的:通过研究RhC、c、E、e抗原在宜昌某医院的分布,结合血型不规则抗体的检出情况,浅析Rh抗原C、c、E、e分型检测的临床意义,提高临床用血安全。方法:对我院2022.07~2023.07期间输血患者和献血员进行血清学ABO血型和Rh抗原C、c、E、e分型检测,使用微柱法对用血患者进行血型不规则抗体筛查及鉴定,记录数据后统计并分析。结果:Rh血型表型有8种,出现率最大的为DCCee (46.71%),最小的为DCcEE (0.23%),Rh血型抗原分型检测中CcEe四种抗原的基因频率和抗原依次为e、C、c、E,在输血患者和献血员中分布无统计学意义。随机匹配时,Rh表型相容的比例为65.89%,不相容比例为34.11%。产生的血型不规则抗体占比最高的为Rh系统抗体,占42.9%,其次为MNS系统抗体,占21.43%。结论:Rh表型、CcEe四种抗原的基因频率和抗原分布在输血患者和献血员中均无差异,实行Rh配合性输注有可行性;Rh配合性输注可减少随机输注的风险性。Objective: By studying the distribution of RhC, c, E, and e antigens in a hospital in Yichang, combined with the detection of irregular blood group antibodies, we analyzed the clinical significance of Rh antigen C, c, E, and e typing testing, and improved clinical blood use safety. Methods: Serological ABO blood group and Rh antigen C, c, E, and e typing were performed on blood transfusion patients and blood donors in our hospital during 2022.07~2023.07. The micro-column method was used to screen and identify irregular blood group antibodies on patients who used blood, and the data were recorded and analyzed. Results: There were 8 Rh blood group phenotypes, with the largest occurrence rate being DCCee (46.71%) and the smallest being DCcEE (0.23%). In Rh blood group antigen typing test, the gene frequencies and antigens of the four CcEe antigens were e, C, c, and E in order. There was no statistical significance in the distribution among blood transfusion patients and blood donors. When matched randomly, the proportion of Rh phenotypes compatible was 65.89%, and the proportion of incompatible was 34.11%. The highest proportion of irregular blood group antibodies produced was Rh system antibodies (42.9%), followed by MNS system antibodies (21.43%). Conclusion: There are no differences in the Rh phenotype, gene frequencies and antigen distribution of the four antigens of CcEe between blood transfusion patients and blood donors. It is feasible to implement Rh matching infusion;Rh matching infusion can reduce the risk of random infusion.展开更多
文摘本文基于RH脱硫剂、RH脱硫过程和无取向电工钢的应用过程,以脱硫量0.0015%、脱硫剂加入量7.5 kg/t为例,对CaO-CaF_(2)系和铝酸钙系脱硫剂分别进行了碳排放量的测算。测算结果表明:铝酸钙系脱硫剂和CaO-CaF_(2)系脱硫剂生产的碳排放量分别为2.362 kg CO_(2)/kg和0.788 kg CO_(2)/kg;RH脱硫剂使用过程中,铝酸钙系脱硫剂和CaO-CaF_(2)系脱硫剂使用过程的平均碳排放量增加约为405 kg CO_(2)/t和416 kg CO_(2)/t。本文还针对无取向电工钢在使用过程的碳排放进行了粗略测算。测算数据对阐述RH脱硫工艺的重要性有参考意义。
文摘目的:通过研究RhC、c、E、e抗原在宜昌某医院的分布,结合血型不规则抗体的检出情况,浅析Rh抗原C、c、E、e分型检测的临床意义,提高临床用血安全。方法:对我院2022.07~2023.07期间输血患者和献血员进行血清学ABO血型和Rh抗原C、c、E、e分型检测,使用微柱法对用血患者进行血型不规则抗体筛查及鉴定,记录数据后统计并分析。结果:Rh血型表型有8种,出现率最大的为DCCee (46.71%),最小的为DCcEE (0.23%),Rh血型抗原分型检测中CcEe四种抗原的基因频率和抗原依次为e、C、c、E,在输血患者和献血员中分布无统计学意义。随机匹配时,Rh表型相容的比例为65.89%,不相容比例为34.11%。产生的血型不规则抗体占比最高的为Rh系统抗体,占42.9%,其次为MNS系统抗体,占21.43%。结论:Rh表型、CcEe四种抗原的基因频率和抗原分布在输血患者和献血员中均无差异,实行Rh配合性输注有可行性;Rh配合性输注可减少随机输注的风险性。Objective: By studying the distribution of RhC, c, E, and e antigens in a hospital in Yichang, combined with the detection of irregular blood group antibodies, we analyzed the clinical significance of Rh antigen C, c, E, and e typing testing, and improved clinical blood use safety. Methods: Serological ABO blood group and Rh antigen C, c, E, and e typing were performed on blood transfusion patients and blood donors in our hospital during 2022.07~2023.07. The micro-column method was used to screen and identify irregular blood group antibodies on patients who used blood, and the data were recorded and analyzed. Results: There were 8 Rh blood group phenotypes, with the largest occurrence rate being DCCee (46.71%) and the smallest being DCcEE (0.23%). In Rh blood group antigen typing test, the gene frequencies and antigens of the four CcEe antigens were e, C, c, and E in order. There was no statistical significance in the distribution among blood transfusion patients and blood donors. When matched randomly, the proportion of Rh phenotypes compatible was 65.89%, and the proportion of incompatible was 34.11%. The highest proportion of irregular blood group antibodies produced was Rh system antibodies (42.9%), followed by MNS system antibodies (21.43%). Conclusion: There are no differences in the Rh phenotype, gene frequencies and antigen distribution of the four antigens of CcEe between blood transfusion patients and blood donors. It is feasible to implement Rh matching infusion;Rh matching infusion can reduce the risk of random infusion.
