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51.
浙江省典型行业含钙类废物特性调查及水泥资源化综合利用可行性分析 总被引:1,自引:0,他引:1
针对目前国内含钙类废物种类复杂、环境危害大且缺乏合理综合利用技术指导的现状,选择浙江省典型污染企业,调查了不同行业含钙类废物物化特性指标,探讨其对水泥资源化综合利用技术的影响,并提出了水泥资源化处置的优化方案.结果表明,不同行业含钙类废物的细度、有机质质量分数等指标相对稳定,CaO、SO3、含水率指标变化幅度较大.含钙类废物水泥资源化可行性分析表明:干湿法电石渣和印染污泥适合煅烧硅酸盐水泥熟料,氟石膏、脱硫石膏适合煅烧硫铝酸盐水泥和用作水泥缓凝剂;所调查的8类废物均不适宜作水泥掺合料;当电石渣掺量为60%、石膏掺量为6%时,电石渣脱硫石膏 电石渣熟料水泥产品的3 d和28 d抗压强度可达27.8 MPa和628 MPa,3 d和28 d抗折强度达到5.7 MPa和8.7 MPa,完全达到62.5号硅酸盐水泥要求. 相似文献
52.
Effect of sheath potential on electromagnetic radiation emitted from the rear surface of a metallic foil target 下载免费PDF全文
In ultra-intense laser--matter interactions, intense electric fields
formed at the rear surface of a foil target may have strong
influences on the motion of energetic electrons, and thereby affect
the electromagnetic emissions from the rear surface, usually ascribed
to transition radiation. Due to the electric fields, transition
radiation occurs twice and bremsstrahlung radiation also happens
because the electrons will cross the rear surface twice and have
large accelerations. In the optic region, transition radiation is
dominant. The radiation spectrum depends on the electric field only
when the electrons are monochromatic, and becomes independent of the
electric field when the electrons have a broadband momentum
distribution. Therefore, in an actual experiment, the electric field
at the rear surface of a foil could not be studied just with the
measurement of optic emissions. In the terahertz region, both
bremsstrahlung and transition radiations should be taken into
account, and the radiation power could be enhanced in comparison with
that without the inclusion of bremsstrahlung radiation. The frequency
at which the maximum terahertz radiation appears depends on the
electric field. 相似文献
53.
Ab initio molecular dynamics calculations have been carried out to search for the ground state structure of FenTi13-nclusters and measure the thermal expansion of FenTi13-n.The volume of FenTi13-n clusters during thermal expansion is jointly determined by anharmonic interaction and magneto-volume effect.It has been found that Fe6Ti7,Fe9Ti4,Fe11Ti2,and Fe13 相似文献
54.