The integrated monitoring system for running parameters of key mining equipment based on condition monitoring technology

An integrated monitoring system for running parameters of key mining equipmenton the basis of condition monitoring technology and modern communication networktechnology was developed.The system consists of a client computer with functions ofsignal acquisition and processing, and a host computer in the central control room.Thesignal acquisition module of the client computer can collect the running parameters fromvarious monitoring terminals in real-time.The DSP high-speed data processing system ofthe main control module can quickly achieve the numerical calculation for the collectedsignal.The signal modulation and signal demodulation are completed by the frequencyshift keying circuit and phase-locked loop frequency circuit, respectively.Finally, the signalis sent to the host computer for logic estimation and diagnostic analysis using the networkcommunication technology, which is helpful for technicians and managers to control therunning state of equipment.

Study of Enterprise Equipment Maintenance Management Integrated Information System Based on B/S

Equipment maintenance management integrated information system is an important constituent part of enterprise IMS (Intelligent Manufacture System). The system should make the best of all kinds of information sources around the enterprise, and meet the demand for agile production. This paper presents an implementation scheme of Integrated Equipment Maintenance Management Information System Based on Internet/Intranet and gives component division scheme of each tier. This scheme adopts a three-tiers mode of B/S (Browser/Server) and software programming module based on software reusing technology. This makes the system integrated and open, makes maintenance and updating convenient, and largely increases software safety and reusability.

Research on Integrated Analysis Method for Equipment and Tactics Based on Intervention Strategy Discussion

As the increase of the complexity of the information warfare,its intervention strategy needs to be designed in an integrated environment.However,the current research always breaks the internal relation between equipment and tactics,and it is difficult to meet the requirements of their integrated analysis.In this paper,the research status quo of the integrated analysis about equipment and tactics is discussed first,some shortages of the current methods are summarized then,and an evolvement mechanism of the integrated analysis for equipment and tactics is given finally.Based on these,a framework of integrated analysis is proposed.This method's effectiveness is validated by an example.

Current Status of the Integrated Circuit Industry in China--IC Special Equipment Industry by:Lithotechsolutions.org

1.Introduction In recent years,China's semiconductor equipment industry has made considerable progress,some key equipment have been developed,achieving a revolutionary breakthrough.Meanwhile,a great number of domestic equipment have been applied to large mass production lines,indicating new progress in industrialization.From the policy perspective,the state has continuously introduced policies to support the localization of the semiconductor industry,and has invested more than 100 billion yuan to boost the development of the semiconductor industry chain since 2014.

Innovative integrating of hot-dipped(aluminizing) galvanizing lines and engineering of related equipment

Based on the continuous hot(aluminizing) galvanizing lines and related non-standard equipment of Meishan Steel,this paper presents the main contents of such integrated engineering and designing of equipment for the two hot-dipped galvanizing lines,as well as innovative techniques and their features.Led by Cold Rolling Project Department of Meishan Steel,Baosteel Engineering and Technology Group Co.,Ltd. ,working as the responsible unit of this project,develops key technologies and integrates the system by combining the equipment design and development capacity of Baosteel Engineering,research and development capacity of Research Institute of Baosteel,process production and equipment maintenance experience of Cold Rolling Plant,Equipment Department and Manufacture Department of Baosteel Corporation.Core technologies of the two lines are developed and designed through original and integrated innovation and innovation after digestion,focusing on eight core techniques in process equipment,annealing furnace,fluid installation and EIC system.As a result of integration in key process equipment,industrial furnace and EIC control,the cold rolling hot dipped(aluminizing) galvanizing lines take on a new look and reach an annual capacity of 200 000 t galvanized products and 250 000 t galvanized aluminium base strips respectively.These two world advanced lines are able to produce hot-dipped galvanizing products with high quality surface and fine shape,such as household appliance board and senior construction board.As a result, the process and equipment technology of the lines have formed domestic intellectual property.Thus,the technology has reference value for self-integration and equipment technology innovation of similar lines.

Independent integration practice on revamping 4200/3500 mm medium and heavy plate rolling mill of Bayi Steel in terms of process and make-up equipment

This study systematically reviews and summarizes relocation and revamping project of medium and heavy plate rolling mill in Bayi Steel.After detailed analysis was made on the main deficiency and problems of the original production line of Pudong Steel,systematical integration and improvement for the process and equipment were carried out accordingly.Through innovative practice of integration,Baosteel Engineering has greatly improved the technical process and equipment make-up,as well as the grades and quality of the products.The original man-operating line is redesigned into an automatic system controlled by Level 2 computer,reaching the advanced technical level of home-made medium and heavy plate production line in recent years.The project is constructed in two phases;The original product mix of Pudong Steel is maintained as much as possible in Phase I.After 3 500 mm single stand finishing mill is put into operation, capacity of hot- rolling medium and heavy plate reaches 650 000 t/a,with the maximum thickness at 40 mm.Equipment or facilities are reserved for production of pipeline steel and other grades.Pipeline steel, vessel plate,wind power plate and other TMCP and heat treatment products are projected in PhaseⅡ.After 4 200 mm roughing mill and its matched facilities are put into operation,capacity of hot-rolling medium and heavy plate will reach 120 000 t/a,with the maximum thickness at 80 mm.Through the optimization of process equipment and its function,the relocated medium and heavy plate mill production line has reached advanced level among similar domestic mills.The prominent achievements of the project are the revamping of thickness control system of the finishing mill and the newly installed shape control system.Automation control of the whole line is realized.

Key Technologies and Development Trends in Advanced Intelligent Sawing Equipments

As a starting point in equipment manufacturing,sawing plays an important role in industrial production.Intelligent manufacturing equipment is an important carrier of intelligent manufacturing technologies.Due to the backwardness of intelligent technology,the comprehensive performance of sawing equipments in China is obviously different from that in foreign countries.State of the art of advanced sawing equipments is investigated along with the technical bottleneck of sawing machine tool manufacturing,and a new industrial scheme of replacing turning-milling by sawing is described.The key technologies of processing-measuring integrated control,multi-body dynamic optimization,the collaborative sawing network framework,the distributed cloud sawing platform,and the self-adapting service method are analyzed;with consideration of the problems of poor processing control stableness,low single machine intelligence level,no on-line processing data service and active flutter suppression of sawing with wide-width and heavy-load working conditions.Suggested directions for further research,industry implementation,and industry-research collaboration are provided.

AAO-MBBR工艺在农村生活污水中应用效果研究

【目的】研究农村污水处理新工艺AAO-MBBR模式运行最佳工况和其对污染物的处理效果。【方法】通过对比不同停留时间、不同内循环比、不同好氧池溶解氧质量浓度下污染物去除率,筛选出设备最佳运行参数,设置设备在最佳工况运行时,分析其对各污染物处理效果。【结果】改良后的AAO-MBBR新工艺在水力停留时间8 h、内循环比为300%、好氧池溶解氧质量浓度为2.5 mg/L时,污染物去除效果最佳。在最佳工况运行时,设备对SS(悬浮物)、COD(化学需氧量)、BOD(生物需氧量)、NH_(3)-N(氨氮量)和TP(总磷量)的去除率分别为80%、85%、91%、84.5%和46%,处理效果显著高于其他污水处理设备。【结论】改良AAO-MBBR工艺一体化污水处理设备污染物去除效果较好。

AO-MBBR-MBR工艺在造纸废水深度处理中的中试应用

针对目前造纸行业废水生化处理工艺运行效果差、不稳定的问题,采用处理工艺为AO-MBBR-MBR的中试设备处理造纸废水,研究中试设备处理造纸废水过程中的污泥量变化、COD_(Cr)和TN去除效果。结果表明:M BBR填料为微生物提供良好的聚集场所,有利于形成体积较大的菌胶团,提高了好氧区污泥浓度。系统运行稳定后,COD_(Cr)及TN的去除率均在90%以上,出水CODCr和TN满足《地表水环境质量标准》(GB3838-2002)中的Ⅳ标准。

基于ABR-MBBR一体化装置处理村镇污水的试验

随着我国村镇污水处理规模的快速发展,众多村镇污水处理技术应运而生,文章创新设计采用了厌氧折流板反应器(ABR)-二级移动床生物膜反应器(MBBR)-纤维束膜处理工艺的一体化村镇污水装置,该装置主要由ABR池、二级MBBR池、竖流式沉淀池和纤维竖膜池组成。试验以上海某城镇污水处理厂进水模拟村镇污水进水,通过对其进行挂膜、驯化阶段研究,探究了该装置的处理效果。结果表明,该装置对进水水质波动具有一定的耐冲击负荷,通过对MBBR池间接性曝气等工艺调整,可实现较好的脱氮除磷效果。通过为期一个多月的启动试运行,该设备对COD_(Cr)、氨氮、TN、TP、SS指标的去除率分别稳定在86%、86%、46%、53%、85%以上,出水水质符合上海市地方标准《农村生活污水处理设施水污染物排放标准》(DB 31/T 1163—2019)中的一级B标准,对我国村镇污水处理技术的选择具有一定的借鉴意义。

Predicting stability of integrated circuit test equipment using upper side boundary values of normal distribution

In response to the growing complexity and performance of integrated circuit(IC),there is an urgent need to enhance the testing and stability of IC test equipment.A method was proposed to predict equipment stability using the upper side boundary value of normal distribution.Initially,the K-means clustering algorithm classifies and analyzes sample data.The accuracy of this boundary value is compared under two common confidence levels to select the optimal threshold.A range is then defined to categorize unqualified test data.Through experimental verification,the method achieves the purpose of measuring the stability of qualitative IC equipment through a deterministic threshold value and judging the stability of the equipment by comparing the number of unqualified data with the threshold value,which realizes the goal of long-term operation monitoring and stability analysis of IC test equipment.

电解氧化-AF-MBBR处理维生素C生产废水

采用电解氧化和厌氧生物滤池一好氧移动床生物膜（AF—MBBR）一体化反应器组合工艺对维生素C生产企业的二级生化出水进行深度处理．结果表明，电解氧化预处理具有较好的脱色效果，优化的运行条件为：pH值为4、电流密度50mA／cm2、极板间距25mm、电解时间15min．此时出水TOC降为97．6～123．2mg／L、色度降为135～155倍、BOD5／COD从不足0．1提高到0．24左右．出水进入AF—MBBR一体化反应器处理，出水平均TOC、色度和氨氮可分别降至57．18mg／L、60倍和2．55mg／L，基本达到发酵制药行业排放标准（GB21903—2008），表明该工艺用于维生素C废水的深度降碳脱色处理具备可行性．一体化反应器的最佳HRT为10h．当进水中添加100mgTL的葡萄糖后，反应器脱氮效果得到较大改善，TN平均去除率可达78．1％，这表明葡萄糖适宜作为维C废水深度处理时的反硝化碳源．紫外及红外光谱分析结果表明主要发色基团为羰基，电解氧化和生化处理均能破坏其双键结构，从而获得较好脱色效果．

基于改良A^2/O和MBBR组合工艺的污水处理试验研究

针对小区及村镇生活污水特点,探讨工艺流程简单、前期投入成本和后期运营成本低的小规模污水处理及回用技术,研发基于改良A^2/O和三级MBBR分段供氧组合工艺技术的小型试验设备,以某小区生活污水为研究对象,开展试验研究和理论分析.探讨了COD和氨氮的去除效率,对处理设备在冬夏季的去除效果进行了比较并探讨了其稳定性,为该水处理设备的研究提供了参考,具有指导意义.

MBBR工艺研究及应用现状

经过二十多年的发展,移动床生物膜反应器工艺(MBBR)作为成熟的污水生物处理技术得到广泛的应用,文章介绍了MBBR工艺的原理和特点以及近些年国内外对其研究和实际应用的现状。

电解-MBBR一体化反应器处理农村分散式点源污水

针对农村分散点源生活污水覆盖面广、分散性强、水质水量不均衡、收集处理率低等特点,通过电解-MBBR一体化反应器处理实际村镇分散生活污水。分阶段调整运行条件,重点检测工艺对COD、氨氮、TP的去除效果并分析原因,验证一体化反应器运行效果。结果表明:对COD、氨氮和TP的去除率分别为91.74%、98.32%、90.80%,出水水质达到《城镇污水治理厂污染物排放标准》(GB 18918—2002)一级A标准,为村镇分散点源污水治理提供参考。

城镇污水的3A/O-MBBR一体化处理工艺

该文通过污水处理厂的运行实例,阐述了3A/O-MBBR在城镇污水处理的应用,同时对工艺原理和优点做了简单介绍。结合城镇污水处理工程实例,研究了该工艺对有机物、氮、磷的去除效果,结果表明,该工艺在运行中有良好的处理效果,适合中小型城镇污水处理厂。

AMBBR一体化设备处理农村生活污水的启动研究

为了解AMBBR一体化装置处理农村生活污水启动调试过程中脱氮除磷特性,以贵州兴仁周边农村生活污水为处理对象,采用接种闷曝法进行挂膜,研究该装置调试过程中水质变化。同时,将间歇曝气与连续曝气处理效果进行比较,分析设备运行过程中出现的问题并提出相应解决办法。由连续运行检测数据可知,农村生活污水经设备处理后COD、NH_(3)-N、TN和TP分别可以稳定到40、7、10、0.54 mg/L左右。连续曝气和间歇曝气对COD和TP的处理效率影响不大,但对于TN及NH_(3)-N有着显著影响,连续曝气的效果明显高于间歇曝气,闷曝培养后,TN和NH_(3)-N处理能力仅比连续曝气效果略低。

A/O-MBBR工艺处理生活污水性能及菌群结构

采用设计规模为100m^(3)/d的一体化缺/好氧-移动床生物膜反应器(A/O-MBBR)处理实际生活污水,通过265d的中试研究考察了该工艺在多因素扰动下的除碳和脱氮性能,并对不同运行阶段微生物群落结构的动态变化进行了研究.结果表明,一体化A/O-MBBR系统具有良好的COD去除效果和脱氮性能.当好氧池溶解氧(DO)浓度和进水碳氮比(COD/N)分别为2.5~3.5mg/L和(7.9±2.0)时,COD、NH_(4)^(+)-N和TN去除率分别达到(93.3±5.4)%、(99.1±0.6)%和(67.9±10.5)%.Proteobacteria、Bacteroidetes和Chloroflexi在不同运行时期均有较高的相对丰度,保证了有机物的高效去除.A/O-MBBR系统脱氮功能菌在运行初期主要分布于活性污泥中,且相对丰度较低.长期运行后,生物膜与活性污泥中均同时检出大量硝化菌和反硝化菌.其中,相对丰度最高的硝化菌为Nitrospira,主要分布于生物膜上(19.48%~28.05%).反硝化菌则以Thauera、Terrimonas和Dokdonella等为主.

纯膜MBBR在城市溢流污染治理中的应用研究

城市溢流污染是造成城市水体黑臭的主要原因之一。为减少溢流污水对城市河道的污染,长江大保护项目中某污水处理厂采用装备化纯膜MBBR系统对溢流污水进行处理。系统采用雨季及旱季两种运行模式,出水COD、氨氮、TP、SS的平均浓度分别为25.3mg/L、1.35mg/L、0.15mg/L、5.86mg/L。旱季及雨季运行时系统对氨氮的去除负荷分别为0.61gN/(m^(2)·d)、0.5gN/(m^(2)·d)。大幅削减了污染物通过溢流作用进入自然水体,在源头端控制了水体黑臭的发生。

D-A^(2)MBBR接触氧化技术处理生活污水示范工程研究

本示范工程设计了日处理量为20 m^(3)/d的D-A^(2)MBBR一体化污水处理设备,进行了为期10个多月的工程应用研究,考察了系统进入稳定运行期后对污水中有机物、氮和磷的去除功效。实验结果表明,该D-A^(2)MBBR一体化污水处理设备在运行处理过程中表现出较高的系统稳定性和较强的去除效能,其对COD、TN、NH_(3)-N、TP去除率分别可高达92.10%、78.01%、93.85%、93.10%,各指标出水分别为:30.5、10.6、2.2、0.43 mg/L,出水水质远优于城镇污水处理厂污染物排放标准(GB 18918-2002)中一级A标准。