一种矿石破碎系统的研发

文章研发了一种矿石破碎系统,包括送料机构和破碎机,其特点在送料机构和破碎机之间设计一个淌筛,其优点是对进入破碎机前的矿石进行筛选,对不需要进行破碎的矿石粉末或符合输送检测要求的矿石颗粒直接输送至下一工序,这样不仅可以有效解决破碎机在工作过程的堵塞问题,延长破碎机的使用寿命,而且大大提高了工作效率。     

新型矿用破碎机齿辊结构设计探究

本文着重介绍了破碎机齿辊部位的设计和新型筛分破碎的破碎形式及原理。通过对齿辊失效形式的分析,得出了新型筛分破碎机的齿辊布置方案以及齿辊的制造工艺。     

一种对辊破碎机的研发

文章研发了一种对辊破碎机,主要用于矿石破碎,包括底座机架、辊筒支架、主动辊筒和从动辊筒,其特点在于从动辊筒上设置有辊筒间隙调节装置,其优点在于该对辊破碎机易于调节且故障率低,这样不仅可以延长破碎机的使用寿命而且大大提高了工作效率。     

一种带清扫刮板的对辊破碎机的研发

文章研发了一种对辊破碎机,主要用于矿石破碎,包括辊筒支架、主动辊筒和从动辊筒,其特点是主动辊筒和从动辊筒的外侧设置有清扫刮板,其优点在于在破碎机工作的同时对辊筒表面的粘附物料进行清理,这样不仅可以延长破碎机的使用寿命而且大大提高了工作效率。     

一种带挡料板的对辊破碎机的研发

文章研发了一种对辊破碎机,主要用于矿石破碎,包括辊筒支架、主动辊筒和从动辊筒,其特点在于主动轴的第一轴承座与从动轴第二轴承座之间设置有挡料板,其优点在于该对辊破碎机可防止物料在工作时进入到导轨平面,使得导轨平面易于清理,这样不仅可以延长破碎机的使用寿命而且大大提高了工作效率。     

新型双齿辊破碎机破碎辊齿损坏原因分析与改进

以元宝山1250大型双齿辊破碎机为研究对象,通过对双齿辊破碎机运行情况分析,找出破碎辊齿损坏的原因,并提出有效的改进措施。为双齿辊破碎机破碎辊齿的合理设计提供参考依据,对双齿辊破碎机系列产品具有普遍意义。     

矿井洗矸全破碎工艺与四齿辊破碎机研发应用

针对矿井洗矸设计了一套破碎深加工工艺,并配合研制了专用四齿辊破碎机,新工艺系统可以与矿井选煤厂原系统有机衔接。     

矿用对辊破碎机的安装维护与常见故障排除

本文主要阐述了矿用对辊破碎机的工作原理和结构、安装、维护,以及常见故障和排除方法等技术问题。     

单辊破碎机受料漏斗的改型设计

马钢第三烧结厂1呈300m^2烧结机单辊破碎机受料漏斗,是由三个部分所组成：①单辊给料漏槽、②热矿槽、③下料漏斗;烧结矿首先经过单辊破碎机破碎之后,流到单辊给料漏槽右箱体里,箱体里布置了厚度为20mm材质为1Cr18Ni9Ti耐磨衬板,从单辊给料漏槽下来的矿,经过热矿槽然后再到下漏斗里,该下料漏斗制作成阶梯形状,并且在阶梯上安装有ZG3Cr18Mn12SiN高     

中国发明专利最优保护期的经济学分析

在当今中国社会随着知识经济的发展,专利权在经济发展中的作用越来越大。本文从经济学角度对我国的专利最优保护期进行深入的分析,试图探究现行专利保护期的合理性。文章通过分析专利的期限收益曲线、专利维持模型,首次提出国内企业和国外企业的专利成本的不同,并对此现象进行了解释。最后,通过我国近年来发明专利数量的变化趋势对文章结论进行了实证分析。     

The structure of invention

This paper explores the process by which radically novel technologies - ones such as radar, the turbojet, or the polymerase chain reaction - come into being. It shows that this process - “invention” - has a certain logical structure common to all cases. Invention is a process of linking some purpose or need with an effect that can be exploited to satisfy it. It may begin with a purpose or need for which existing methods are not satisfactory; this forces the seeking of a new principle (the idea of an effect in action). Or it may begin with a phenomenon or effect itself - usually a freshly discovered one - for which some associated principle of use suggests itself. Either way, translating this base principle into physical reality requires the creation of suitable working parts and supporting technologies. These raise their own challenges or problems, the solution of which may raise further challenges. As a result, invention is a recursive process: it repeats until each challenge or problem (and subproblem, and sub-subproblem) resolves itself into one that can be physically dealt with. It is challenging, usually lengthy, part-conceptual, and part-experimental.     

The invention of the sand clock

The simple draining liquid clepsydra (water clock) was in use in Egypt by 1500 B.C. The replacement of the liquid with a fine granulated material, thus converting the clepsydra into a clepsammia (sand clock), appears not to have occurred before the mediaeval period. What human need was then met by the sand clock that could not be met by a water clock or early mechanical clock?