翻译例文 Example Translation.doc

翻译例文 Example Translation1 技术要求请投标方简介入炉煤采样的技术来源、结构特点、性能可靠性及技术改进。1.1 总的技术要求1.1.1 投标人提供的设备应功能完整、技术先进、适应本工程的环境条件并能满足人身安全和劳动保护条件。1.1.2 所有设备应正确设计和制造，满足安全和持续运行，满足所有工况下的功能而不应有过度的应力、振动、腐蚀、老化以及其它的运行问题。招标人欢迎投标人提供优于本规范书要求的先进、成熟、可靠的设备及部件。1.1.3 设备必须是全新的并有可靠的设计，不接受带试制性的部件。设备零部件的制造过程应有良好的工艺，易于磨损、腐蚀、老化或需要调整、检查和更换的零部件应提供备用品，并能比较方便地拆卸、更换和修理。所有重型部件应有安装维修时便于起吊或搬运的措施。1.1.4 机械零部件应有良好的互换性，所有的设备和材料应能满足所使用工况条件的要求。1.1.5 设备制造中结构钢材需进行喷丸（砂）预处理。1.1.6 所有轴承采用FAG、SKF或INA轴承。1.1.7 所有减速机采用原装进口SEW、FLENDER或NORD产品，需无冲击、无漏油、温升不超过45。1.2 系统工作过程入炉煤取样装置按预定的采样周期旋转一周，从运煤主皮带上横向刮取全断面的煤样,样品直接通过溜槽落入初级皮带给料机中，皮带给料机设有控制闸板将物料均匀地送入破碎机进行破碎，破碎后的样品进入给料机，经缩分器，缩分后的最终样品落入密闭的样品收集罐中，余料均被送入斗式提升机，通过斗式提升机提升到适宜的高度后返回到输煤主皮带中。1.3 设备性能和结构要求1.3.1 采样装置具有在胶带机中部(入炉煤)采样、破碎、缩分和余煤返回等功能。整套装置的主要参数符合设计要求。采制样精确度A达到2。该系统全密封设计，尽量减少系统中的空气循环，以减少水分损失。系统无物料损失，水分损失1.0。1.3.2 本工程的取制样装置包括采样机（刮板式采样头）总成、皮带给料机总成、样品破碎机总成、样品收集器总成、余料返回系统（斗式提升机）总成。MCC柜和PLC控制面板及所有设备的电气系统设备总成。1.3.3 初级采样头采用电动刮扫式采样头，并与单元装置相连接。电机等设备设必要的电气和机械保护，避免堵转、堵塞等现象发生。1.3.4 所有落煤管均采用不锈钢制作。1.3.5 采样头1.3.5.1 入炉煤取制样装置采用电动刮扫式采样头，能采出煤流全断面煤样，不损伤胶带，采煤头的开口宽度不小于入炉煤最大粒度的2.53倍。1.3.5.2 采样头刮煤斗的采样速度大于输煤皮带的速度，并保证所采煤样全部落入集煤槽内。采样头的采样周期可根据采集子样数进行调节，每个子样量不少于5Kg。1.3.5.3 采样头刮斗采用不锈钢耐磨材料。1.3.5.4 采样头采用进口原装产品。1.3.6 碎煤机 1.3.6.1 所采样煤经碎煤机破碎后，粒度大于3mm的煤样不得超过5。1.3.6.2 碎煤机的磨煤部分应为耐磨材料，在破碎过程中，不发生过热现象。1.3.6.3 碎煤机对进料中偶然进入的难碎异物应有排出功能，以保护设备不受损坏。1.3.6.4 碎煤机破碎全水分14样煤时，能正常连续运行，机内不发生粘结、堵塞等现象。1.3.6.5 碎煤机选用原装进口产品。1.3.7 缩分器 1.3.7.1 入炉煤采制样装置缩分器采用缩分精度较高的刮扫式，以减少缩分误差。1.3.7.2 缩分器的缩分比可调，并符合煤样缩分后留样重量与粒度的关系。粒度小于3mm的煤样重量应大于等于15kg。1.3.7.3 缩分器缩分全水率 14样煤时，机内不发生粘结、堵塞等现象。1.3.7.4 确定煤样与余煤缩分比时,至少进行5次对比试验,并应符合原设计缩分比的要求。1.3.7.5 缩分器采用原装进口产品。1.3.8 给煤机1.3.8.1 给煤机采用密闭带式给煤机，具有胶带清扫机构。保证均匀的流量,能防止堵塞。1.3.8.2 入炉煤采样的初级给煤机上设置有效去除煤样中铁质的设施，以防铁件进入破碎机。1.3.8.3 给煤机驱动装置禁用电动滚筒，采用密闭式，但应设计有堵煤清理口.1.3.9 斗式提升机1.3.9.1 确保平稳、安全、连续的将余煤送到正在采样的输煤皮带上。1.3.9.2 斗型结构设计和加工应避免撒煤.1.3.9.3 销轴应采用耐磨材料,正常使用寿命不低于30000小时.1.3.9.4 整个系统的进煤口、出煤口及其间连接落煤管、接料斗皆采用不锈钢耐磨材料。1.3.9.5 各单元应考虑便于检修和安装的钢平台。1.3.10 电气及控制部分1.3.10.1 采样系统的控制方式为PLC程序控制和手动控制两种，遇有紧急情况能迅速切换成手动方式，必要时停止采样，以保证上煤作业不受影响。1.3.10.2 全封闭设备与PLC控制面板和电机控制中心全部用电缆连接。1.3.10.3 采样系统的控制方式为程序控制，应分别与输煤系统4号甲乙带式输送机联锁，设起停运行状态输出信号。要求采样机接受输煤程控提供的4号甲乙带式输送机甲启、甲停、乙启、乙停并向输煤程控提供如下信号：甲运行、乙运行、整机轻故障（采样机自动停，不影响主皮带运行）、甲重故障、乙重故障（主皮带机停机）、采样瓶满。系统有手动/就地自动/远方程控三种工况，由转换开关选定。控制功能由可编程序控制器实现，可编程序控制器（PLC）采用施耐德系列产品（考虑到全厂辅控网PLC型号的统一，如果采用西门子或AB系列产品，应采用相同档次的产品并不发生费用变化）。PLC控制系统通过工业以太网卡和光纤方式将入炉煤采样装置系统监控信号送入输煤程控系统，通过输煤程控系统实现对入炉煤采样装置系统的运行状况监控。投标方应负责提供通信接口硬件（入炉煤采样装置系统侧）与技术配合。并在投标书中给出详细的网络配置图和详细的PLC硬件配置清单。1.3.10.4 供方应提供一个就地电控柜，一次设备和二次设备应设置隔离，避免干扰。控制柜要求采用厚度不小于2.5毫米的不锈钢制作，柜内电气元件按照施耐德、西门子、ABB公司等产品进行投标标价，最终选用与主厂房一致。控制柜防护等级IP65。控制柜上设有手动/就地自动/远方程控控制切换开关，并设有如下接口供远方程控使用：a) 远方程控启、停指令（短脉冲指令）；b) 手动/就地自动/远方程控控制状态的远方显示；c) 整套系统的运行状态显示、数据记录和报警显示。上述信号量采用无源干接点，接点容量不小于DC220V,1A。招标方仅负责提供380/220V总电源至投标方提供的控制柜。控制柜及系统内的所有设计均由投标方完成及负责。投标方所供设备之间的电缆、电缆管或电缆槽盒均由投标方提供清册并供货。对于端子排的选型，我院暂按南京凤凰、魏德米勒和成都瑞联三家进行推荐，最终全厂统一进行规定。1.3.10.5 取样系统和输煤主皮带进行联锁，当该系统发生故障时，能向输煤程控系统报警并自动停机，但不影响主皮带机的正常运行。1.3.10.6 控制系统的I/O点清单随技术文件提交（应注明用途）。控制系统的机柜留有20插槽备用位置，I/O点设有各种类型10的余量。1.3.10.7 程控系统应留有与电厂输煤程控系统的硬接线接口和通讯接口：硬接线接口的接点数不应少于24对，接点容量为AC220V 5A，DC220V 5A；通讯接口为光纤接口，具体接口方式应满足输煤程控系统的要求。1.3.10.8 程控系统应配有1套UPS电源，其容量应大于程控系统在最大工况下所需的容量，且其所带蓄电池容量应满足主电源失电后能维持程控系统在最大工况下工作1个小时。1.3.10.9 采样设备所有一次仪表的防护等级为IP56。1.3.10.10 电动机a) 防护等级 IP54b) 绝缘等级：F级c) 供方应列出入炉煤采样装置控制系统所需各种电气设备的详细产地、生产厂家、技术性能参数，供需方确认。1.4 清洁，油漆，包装，装卸，运输与储存1.4.1 清洁和油漆组装前应从每个零部件内部清除全部加工垃圾，如金属切削、填充物等,应从内外表面清除所有轧屑、锈皮油脂等。钢结构在第一次涂层前应做喷丸处理,在钢结构发运前必须刷二道环氧富锌（含锌量70%）底漆（厚度100m）、一道中间漆（环氧（云铁）厚浆，厚度100m）和一道聚氨脂面漆。安装后所有钢结构表面应涂最后一道聚氨脂面漆,油漆颜色由买卖双方协商确定。油漆应采用国内较先进的漆种，油漆品质应考虑防腐蚀要求。1.4.2 包装和运输1.4.2.1 设备的包装应符合GB/T13384标准的规定， 并采取防雨防潮防锈防震等措施，以免在运输过程中，由于振动和碰撞引起轴承等部件的损坏。设备出厂时，零部件的包装符合JB2647的规定，分类装箱，遵循适于运输、便于安装和查找的原则。1.4.2.2 设备发运前，应将水全部放掉并吹干，当放水需要拆除塞子疏水阀等时，投标人应确保这些部件在发运前重新装好。所有开口法兰接头应采取保护措施，以防止在运输和储存期间遭受腐蚀损伤及进入杂物，油系统设备及管路应采取适当措施装运，保证其防锈、防腐。需要现场连接的螺纹孔或管座的焊接孔应采用螺纹或其它方式予以保护。遮盖物紧固件不应焊在设备上。1.4.2.3 包装标准及示意图。大部件储存要求参见国家有关标准。投标人投标时提供包装标准及示意图。投标人应保证提供设备的包装至少满足现场露天存放6个月的要求。1.5 设备标志1.5.1 设备铭牌应采用耐腐蚀的不锈钢板制造。1.5.2 铭牌应安放在运行人员容易看到的地方。1.5.3 铭牌上应该有耐磨损的下列内容，但不限于此。a)制造厂国别；b)制造厂名称；c)设备型号；d)设备名称；e)出厂日期编码；f)出厂检验编码；g)主要技术参数。1.6 设备KKS标识本工程采用统一的KKS编码标识系统，编码范围包括卖方所供系统、设备、主要部件。卖方在设计、制造、运输、安装、试运及项目管理的各个环节使用KKS编码。编码规则由设计院提供，投标人负责所供设备的KKS编码。在投标时，请投标人提供类似设备的KKS编码。1 Technical RequirementsPlease vendors introduce briefly the source of technology, structure characteristic, performance reliability and technical improvements of the sampling systems. 1.1 General Technical Requirements1.1.1 The equipments bided should be functional integrity, advanced technology, meeting the environment of the project, safety and labor conditions.1.1.2 All equipments should be correctly designed and manufactured to meet the safety and continued run, and meet all conditions to run without undue stress, vibration, corrosion, aging and other operational issues. We are welcome to more advanced, mature, reliable equipment and components than requirement in this document. 1.1.3 All equipments should be new and with mature design, without testing components. The parts of the manufacturing process should have good technology. The replacement parts should be provide for the easy to wear, corrosion, aging or need to adjust, inspect and replace, which can be more easily taken down, replaced and repaired. The measures for the lifting or removal when installed and maintained should be have for all heavy components. 1.1.4 The parts should have good interchangeability. All of the equipments and the materials should be able to meet to the requirements of all operational conditions.1.1.5 The frame steel should be sandblasted as pretreatment during manufactured. 1.1.6 All of the bearings should be used with FAG, SKF or INAs.1.1.7 All slow-down machines should be imported fully from SEW or FLENDER or NORD, with no impact, no spill oil and no more than 45.1.2 Working Process of the Sampling SystemsFor the systems, its sampler should be sampling one time from the belt conveyor by cross way when rotating a turn according to the predesign. Then the sample should fall into the primary belt feeder directly through the chute. And for the primary belt feeder, there should be a control flashboard to make the sample sent into the crusher uniformly for broken in it. After broken, the sample should be sent into secondary feeder through the divider. The sample after dividing should fall into the sample collector which should be obturating. And the remainder should be sent into the bucket elevator and be put back to the belt conveyor. 1.3 The Requirements for Characteristic and Structure of the Sampling System1.3.1 The sampling system should be able to finish sampling, crushing, dividing, putting back the remainder and other operation in the middle of the belt conveyor. The main parameters of the entire device should meet the design requirements. And its accuracy will be 2% (A= 2%). It should be with fully sealing in order to reduce air circulation in the systems for lessening water loss (water loss 1.0%) and without bulk loss. 1.3.2 The sampling system should be included the sampler assembly (Cross belt sampler), the belt feeder assembly, the sample crusher assembly, the sample collector assembly, the remainder back system assembly (the bucket elevator assembly), MCC box, PLC control panel and all of the electrical system equipments assembly. 1.3.3 The primary sampler should be electric-cross-sampling head and connecting with the module device. Electrical and mechanical protection should be have for the motor so as to block, block for running and other issues. 1.3.4 All of coal-drop pipe should be made using with stainless steel. 1.3.5 The Sampler1.3.5.1 The sampler should be electric-cross sampling head and can sample the whole cross section of coal flow without making injury to the belt. The cutter opening size should be not less than 2.53 times of max. size of the coal into the furnace. 1.3.5.2 The speed of the hod of the sampler should be quick more than the belt and can make all of the samples into the chute fully. The period of the sampler should be adjustable based on the quantity of the subsample and every subsample should be not less than 5Kg.1.3.5.3 The hod should be made with resistant-abrasion and stainless steel material.1.3.5.4 The sampler should be imported fully. 1.3.6 The Sample Crusher 1.3.6.1 The sample in lump size more than 3mm after crushed should be no more than 5%.1.3.6.2 The part for grinding of the crusher should be made with abrasion-resistant material and should have no overheating when crushing.1.3.6.3 The crusher should be able to exclude the things which enter occasionally with the sample and are broken difficultly in order to protect the equipment from damage.1.3.6.4 The crusher should continue to run when the whole water of the sample is less than 14% and without felting, blocking and other issues made the equipment abnormality operation.1.3.6.5 The crusher should be imported fully.1.3.7 The Divider1.3.7.1 The divider should device using high precision scraper for dividing in order to reduce error.1.3.7.2 The dividing rate of the divider should be adjustable and compliance with the relationship between the weight of the sample after dividing and the lump size. The sample less than 3mm in lump size should be no less than 15kg.1.3.7.3 The divider should continue to run when the whole water of the sample is less than 14% and without felting, blocking and other issues made the equipment abnormality operation.1.3.7.4 It test should be 5 times at least when deciding the rate between the sample and the remainder coal. All of these should be compliancy with the design requirements.1.3.7.5 The divider should be imported fully.1.3.8 The Feeder1.3.8.1 The feeder should be sealed and be able to clean the belt by self in order to ensure uniform flow and prevent the blocking. 1.3.8.2 There should be the device excluding something such as iron effectively in the primary feeder in order to prevent this kind of thing into the crusher.1.3.8.3 The driver device of the feeder must not be used electric roller and be sealed. There should be removal blocking-coal channels on it.1.3.9 The Bucket Elevator1.3.9.1 It should ensure that the bucket elevator can remove the remainder smoothly, safely and continuously into the belt conveyor that sampled. 1.3.9.2 The structure of the bucket should be able to prevent to leak coal. 1.3.9.3 Its parts such as bearing should be made with abrasion-resistant material and the normal life should be no less than 30,000 hours.1.3.9.4 The imports, exports, linking fall-coal pipes and bucket, all of these should be made with abrasion-resistant stainless steel material.1.3.9.5 The steel platform for overhauling these parts should be considered to design.1.3.10 The Electric & Control Equipments1.3.10.1 The control mode of the sampling system should both have PLC program and manual control. It can convert rapidly into manual control even stop sampling in case of emergency in order to ensure the coal conveyor not be affected. 1.3.10.2 Linking the fully-sealed equipments, PLC control panel and the motor control center, all of these should be cables.1.3.10.3 It should be program control the sampling system and be link with No.4.1 and No.4.2 belt conveyor respectively and set stop operation output signal. It will require the sampling system to accept the signal of start and stop of No.4.1 and No.4.1 given by the program control system, meanwhile, require the sampling system send these signal as below to the program control system: No.4.1 run, No.4.2 run, small malfunction of the whole system (the sampling system stops automatically, not affects the run of the belt conveyor), bad malfunction of No.4.1, bad malfunction of No.4.2 (the belt conveyor stops), filling with the sample collector. The system should have manual/local automatic/remote program three kinds of control manner and be selected by the converting switch. The control function will be done by the programmable logic controller (PLC). PLC should come from the series products of Schneider company (because of taking into account the uniform of PLC model of auxiliary control system in the whole project. If with Siemens or ABBs, it should be the same level and without cost changes). PLC control system will send the control signals of the sampling system to the program control system through the industrial Ethernet Card and fiber. Just like this, the coal-conveying program control system can carry out to monitor and control the running process of the sampling system. So the vendor should provide the communication hardware (on the side face of the sampling system) and relevant technical supports, and give more detail line-configuring figure and the hardware list of PLC.1.3.10.4 The vendors should provide a ground electric-control box with isolation facilities between the primary devices and the secondary devices to avoid interference. The control cabinet should be made with stainless steel no less than 2.5mm in thickness size. The electric components in the box should be complied with the bid price of Schneider, Siemens and ABB, whose will win according with the main house and with IP65 protection grade. There should be manual/local automatic/remote procedure control converting switch and connectional interfaces as below for remote procedure control on the box: a) Run and stop for remote procedure control (short-pulse order signal); b) Distance display of the control state of manual/ local automatic/ remote procedure control; c) The state display, data recording and alarm display of the whole system operation. All of above mentioned signals should be by non-source point and the point volume should be no less than DC220V, 1A. The owner will only be charge of providing 380/220V power to the electric-control box provided by vendor. All design of the control box and the system will be done by vendor. All cables, cable pipe and trough connecting these equipments should be listed and provided by the vendor. About choice of the terminal row, we are now recommending Nanjing Phoenix, Weidmuller and Chengdu Ruilian three companys, and the final selection by entire project. 1.3.10.5 The sampling system will be united and integrated with the belt conveyor. That can alarm to the whole coal-transported procedure control system and stop automatically but not affect normal run of the belt conveyors when malfunction taking place. 1.3.10.6 And for the control system, its I/O interface list should submit with the technical documents and there should be 20% standby jack of all jack position in the control box and there should be 10% standby I/O interface of various types.4.3.10.7 There should be hard-wired interface and communication interface between the program control system and the coal-transported procedure control system of the power plant. And quantity of the hard-wired interface should be no less than 24 couples with interface volume is AC 220V 5A, DC220V 5A. And the communication interface will use fiber interface. However, what matter kind interface should be meeting to the requirements of the coal-transported procedure control system.1.3.10.8 The program control system should have one set of UPS power, whose volume should be more than the volume of the system max. require. And the volume of its storage battery should meet to the systems max. require one hour after the main power stops.1.3.10.9 All of the sampling one-off instruments and meters should be with IP56 protection grade.1.3.10.10 The Motor a) Protection Grade: IP54 b) Insulation Grade: F Level c) The vendor should provide the list of the sampling system which includes detail origin, manufacturers and technical parameter of the equipments, devices and parts of the sampling system in order to ensure by demander. 1.4 Cleaning, Painting, Packaging, Loading & Unloading, Transport and Storage1.4.1 Cleaning and PaintingEvery part should be cleaned fully including internal processing waste, filling material, etc and external rust, oil and other little scales before assembled. Steel housing should be sandblasted treatment before the first painting and be brushed with epoxy zinc primer (Zn content 70%, primer thickness: 100m) two times and middle section (epoxy Fe with 100m thickness) one time and polyurethane surface finishing painter one time before transported. All surface of the steel housing (or frame) should be coated last polyurethane finish after installed and the paint color should be decided by the vendor and demander together through negotiation. However, the paint should be good quality and can meet to anti-corrosion requirement.1.4.2 Packaging and Transport1.4.2.1 The packaging should be conformed to GB/T13384 standards and with rain-proof, moisture-proof, rust-proof and preventing earthquakes measures to avoid causing the damage of the bearing and other components since vibration and collision during transported. The packaging of the components and parts should be complied with the regulation of JB2647 when left the factory and classified to encasement to follow suitable for transport, easy to install and identify principles. 1.4.2.2 Drying the equipment should be done and make water leave up before shipping. Meanwhile the vendor should ensure all of the components reassemble well in case of removing the