共查询到18条相似文献,搜索用时 93 毫秒
1.
2.
3.
本文对有色金属加工厂房通风的设计做了系统的介绍,并对如何选择和应用做了分析和探讨,从而改善和提高厂房内的空气品质。 相似文献
4.
锌湿法冶炼浸出、净液及电解生产过程中有大量的酸雾、水蒸气等产生,车间工作环境恶劣,污染严重.作者考察了国外冶炼厂湿法车间,通过本文进行介绍,同时分析探讨反应槽废气处理及锌电解车间的通风方式与国内不同之处,提出改善工作环境、节能减排的设想. 相似文献
5.
6.
7.
8.
何茂才 《有色冶金设计与研究》2010,31(1):4-6
结合矿山的地形地貌、矿体赋存状态、矿山开拓、运输、采矿方法和回采顺序等条件,对矿井通风系统和通风方式的合理选择进行分析,并提出了设计中应注意的几个问题。 相似文献
9.
介绍了镉的生产工艺,分析了海绵镉置换的原理及置换过程中的各种影响因素,如置换金属的比表面积、置换时的搅拌强度、氧的还原与氢气的析出、被置换金属离子的浓度、溶液中的其它组分、温度等因素的影响。同时结合生产实际论述了海绵镉置换过程中应注意的问题,并提出了相应的处理办法。 相似文献
10.
针对马道头煤矿通风效果较差问题,对该煤矿通风系统主要从通风设备、通风阻力、通风网络三个方面进行优化。优化后发现,煤矿通风系统风量提升了22.91%,满足现阶段矿井风量需求。 相似文献
11.
Sherman Jeffrey W.; Stroessner Steven J.; Conrey Frederica R.; Azam Omar A. 《Canadian Metallurgical Quarterly》2005,89(4):607
Three experiments examined the relationship between prejudice and processing of stereotypic information. Higher levels of prejudice were associated with greater attention to and more thorough encoding of stereotype-inconsistent than stereotype-consistent behaviors but only when processing capacity was plentiful (Experiments 1 and 3). High-prejudice participants attributed consistent behaviors to internal factors and inconsistent behaviors to external forces (Experiment 2). Together, these results suggest that high-prejudice people attend carefully to inconsistent behaviors to explain them away but only if they have sufficient resources to do so. Results also showed that low-prejudice but not high-prejudice participants formed individuated impressions by integrating the implications of the target's behaviors (i.e., individuating). High levels of prejudice appear to be associated with biased encoding and judgment processes that may serve to maintain stereotypes. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
12.
13.
为解决目前钨离子交换工艺中存在的调速滞后的问题,探寻了钨离子交换控制的优化方法。该方法以最短时间内达到钨离子交换容量的最大值为控制目标。建立了一个钨离子交换预测模型,并实现滚动优化和反馈校正。研究预测控制算法在离子交换过程中的应用,提出一个预测控制方案,并对单输入变量的预测控制算法进行初步仿真。该预测控制系统能够实现在最短时间内达到树脂的最大工作交换容量的目标。在钨离子交换过程根据现场情况实时调整流入液流速,使流速和吸附速率匹配。钨离子交换预测控制解决了流入液流速调整滞后等问题,有比较明显的经济效益。 相似文献
14.
通过对塘子凹通风系统存在问题的分析研究。结合矿山实际采用以工作面为服务核心建立通风系统。拟定出了目前、扩产、远景3个生产发展时期通风系统规划。研究结果表明,通风系统整后可取得良好的社会效益和经济效益。 相似文献
15.
Bray James H.; Adams Gerald J.; Getz J. Greg; McQueen Amy 《Canadian Metallurgical Quarterly》2003,71(3):553
The study used latent growth modeling to investigate longitudinal relationships between individuation, peer alcohol use, and adolescent alcohol use among African American, Mexican American, and non-Hispanic White adolescents (N=6,048) from 7th, 8th, and 9th grades over a 3-year period. Initial levels of peer alcohol use were significantly related to changes in adolescents' alcohol use, whereas initial adolescent alcohol use also significantly related to changes in peers' alcohol use, suggesting a bidirectional relationship. Higher levels of intergenerational individuation were related to smaller increases in adolescent alcohol use and higher levels of separation were related to larger increases in youth drinking. The findings were similar across ethnic groups. Implications for development of prevention and intervention programs are discussed. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
16.
17.
3DMINE软件在通风网络解算中的应用 总被引:2,自引:0,他引:2
运用3DMINE软件通风模块,结合某矿山实例进行详细解算,系统阐述了该软件的解算原理和解算步骤,充分展示了矿业软件在设计中的便利及优越性。 相似文献