共查询到20条相似文献,搜索用时 109 毫秒
1.
介绍了一种基于全矿井胶带输送机分布式监控系统的网络结构,该系统设置了2个就地控制站、1个集中控制站和1个远程监控主站,建立了RS-485、PROFIBUS和以太网3个层次的通讯网络,实现了对胶带输送机的就地、集中、远程监控,提高了生产效率,减少了现场操作人员,提高了安全性,取得了良好效果。 相似文献
2.
3.
4.
5.
6.
7.
该文详细论述了百泉岩溶地下水系统水文地质特征,收集了20世纪70年代以来的地下水动态资料,对地下水环境演变过程进行了分析,用均衡法计算了区域地下水资源;建立了地下水数学模型,利用1992~2006年,30多个长期观测孔的地下水位动态资料,对模型进行了全面的识别调试,利用建立的模型对区域地下水环境发展趋势进行了预测。根据本区水文地质特点提出了地下水环境保护措施。 相似文献
8.
晓明矿选煤厂通过对跳汰分选设备及辅助系统的技术改造,完善了选煤工艺环节,灵活了生产系统,创出了名牌产品,提高了生产能力和产品质量,降低了选煤成本,增加了企业的经济效益,取得了显著的社会效益。 相似文献
9.
论述了加强自主创新工作的意义,总结了我国选矿技术进步的特点,分析了我国选矿技术存在的问题,提出了加快我国选矿技术进步的建议。 相似文献
10.
11.
绿色制造是现代化企业的一种可持续发展模式,其具有明显的经济效益及社会效益,正成为当前制造业一个显著特点。实施绿色制造的重要技术为科学的工艺规划,对于在加工过程中降低对废弃物的排放及资源的消耗有非常关键的作用。主要阐述了面向机械加工工艺规划的制造研究体系,提出了绿色制造工艺过程规划的优化方法,并对机械加工绿色制造评价方法进行了研究。 相似文献
12.
工程装备远程技术支援系统 总被引:1,自引:0,他引:1
介绍了工程装备远程技术支援系统的客户机/眼务器模型。利用Internet网络,实现了工程装备的远程故障诊断。调用Netmeetng程序,利用双频信号实现了装备的远程技术指导。系统数据库由SQLServer7.0建构与维护、应用程序用Powerbuilder8.0语言开发。 相似文献
13.
根据矿山井下工程轮眙的使用要求,结合引进TIP.TOP公司修补胶的物性炼点,经过反复试验研制出的自制修补胶片物性接近与进口胶片,且成本低廉,完全满足了工程轮胎修补需要。 相似文献
14.
15.
Under the environment of seepage field, stress field and temperature field interaction and influence, the three fields will not only produce coupling effect, but also have deformation with time due to the rheological behavior of rock mass. In the paper, based on the fundamental theories of rock mass coupling theory and rheological mechanics, the rheological model for fully coupled thermo-hydro-mechanical analysis for rock mass was set up, and the corresponding constitutive relationship, the conservation equation of mass and the conservation equation of energy were given, and the finite element formulas were derived for coupling analysis of rock mass. During establishing governing equations, rock mass was assumed approximately as macro-equivalent continuum medium. The obtained rheological numerical model for fully coupled thermo-hydro-mechanical analysis can be used for analyzing and predicting the long-term stability of underground caverns and slope engineering under the condition of thermo-hydro-mechanical coupling with rheological deformation. 相似文献
16.
采用最新齿轮强度计算标准,利用ASP和网页制作技术,在Visual Basic、Visual Inter-Dev6.0环境下开发出了基于Web和齿轮设计制造专家咨询的减速器远程优化设计系统,从而实现减速器的远程优化设计,详细设计校核,齿轮的设计与制造的专家咨询,精度检索等。在减轻齿轮工程技术人员的劳动强度,提高工作效率,实现齿轮计算机辅助工程分析(CAE)等方面做出了一定的探索。 相似文献
17.
运载索的磨损与抱索器钳口、驱动轮槽和迂回轮槽接触是否良好密切相关。托索轮组中的托索轮经常与运载索摩擦。因此,托索轮的制造和装配的优劣程度对运载索的使用寿命影响极大。若运载索内部的润滑油被挤干,就会极大地缩短运载索的使用寿命,甚至可能发生重大事故。因而必须经常仔细检查其润滑情况。 相似文献
18.
Beneficiation routes aimed at dephosphorisation of oolitic gravity magnetic concentrate and involving a combination of roasting, re-grinding, magnetic separation and water and acid leaching are investigated. Roasting was carried out at 900 °C for 1 h without or with lime or sodium hydroxide as roasting additives. When additives were used, cement phases of Si–Al–Na–Ca–O type were detected as well as the mineral giuseppettite. During the thermal process sodium silicate is liquefied and the newly formed phases coat the oolites and penetrate inside the cracks. Energy Dispersive Spectroscopy analysis has indicated that the zone surrounding the oolites consists of Na, Al and Si phases with part of phosphorus being captured there. As a result of the alkaline roasting, goethite is partly transformed to magnetite and this reduction is reinforced with an increase in sodium hydroxide dosage. Investigation of redistribution of phosphorous shows that it could be only partly separated if leaching is not accompanied by re-grinding and physical separation. The recommended dosage of the reductive agent for the final flowsheet is 8 mass% ratio to concentrate. Grinding to a mean size of 0.040 mm, with water and acid leaching and double magnetic separation creates conditions to obtain a high-quality iron concentrate with 65.97% Fe and recovery of 92.43%, with simultaneous decrease in the phosphorus content from 0.71% to 0.05%. 相似文献
19.