outotec精矿喷嘴及风动溜槽 (2010金川)

1、Outotec Concentrate Burner Outotec 精矿喷枪The key to efficient flash smelting高效闪速熔炼的关键Flash Smelting Furnace闪速熔炼炉Outotec Concentrate BurnerOutotec Concentrate Burner is so-called Sleeve-type Burner which has been developed through extensive research and long-time operational experienceOutotec精矿喷嘴是套筒型喷嘴

2、，是通过广泛的研究开发出的，并具有长期的操作经验State-of-the-art Computational Fluid Dynamics (CFD) modelling has been utilized to find the optimum flow rates and velocities for perfect combustion throughout the capacity range of the plant 为找到覆盖工厂产能范围的完全燃烧的最佳流量和流速，应用了先进的计算流体动力学模型。Material flows through the burner通过喷嘴的物料流Ox

3、ygen enriched process air富氧工艺风Middle oxygen中央氧Solid feed mixture混合固体炉料Distribution air分散风Fuel oil / Gas燃油/天然气Simple and robust construction结构简单、高效Outotec Concentrate Burner consists of seven main parts: Outotec精矿喷嘴由七个主要部件组成：Middle Lance 中央油枪Distributor 分配器Feed Inlet Box 入口加料盒Central Jet Distributor

4、中央喷射分配器Air Chamber 风箱Nesting Block 鸟巢水套Surrounding Block 环绕水套Outotec Air Slide Outotec 风动溜槽Steady solid feed flow to the burner by utilization of Air Slide technology通过应用风动溜槽技术实现喷嘴固体物料流量的稳定Air Slide conveys solid feed from feed dosing system to Outotec Concentrate Burner using fluidized air bed风动溜槽应

5、用流化风床将物料计量系统的固体物料输送到精矿喷嘴Forgives little hiccups from feed system by evening out the flow通过均匀流量忽略加料系统短暂的间断Even fluidized bed thickness without particle segregation均匀流化床厚道、没有料粒分层Prefluidization of solid feed预流化固体物料Conveyor is low maintenance and noise free 运输机维护量小、无噪音Air Slide setup风动溜槽结构Automatic sli

6、de gate自动滑动门Inspection hatches观察口Blockage sensor 堵塞传感器Adjustable support leg structure可调支架Replaceable fluidization bottom plate可更换流化底板Air Slide pulsation tests风动溜槽脉动测试2 second stop in feed has been simulated and results are presented on the left 模拟 了加料停止2秒时的情况，结果显示在左侧Short feed fluctuations less tha

7、n 2 s are eliminated before they can cause disruptions in the reaction shaft operation少于2秒的加料波动可在其对反应塔操作造成影响前消除Section flow guards截面流量报警装置After Air Slide the flow is divided into four inlet feed sections经过风动溜槽之后，流量被分为4个进口加料截面Each inlet section is equipped with a flow guard for monitoring possible se

8、ction blockages 每个入口截面装备有一个流量报警装置，监测可能的截面堵塞In case of blockage the steel surface starts to cool which alarms the operator 堵塞发生时钢表面开始冷却向操作者发出报警Flow guard example 流量报警装置举例Inlet guide vanes 入口导叶Each section ends up into a collision plate which eliminates the horizontal velocity of solid feed flow每个截面末端

9、有一个碰撞板，用来消除固体物料流量的水平流速Collision also helps to premix the solid particles with fluidization medium碰撞还有利于固体料粒和流化介质的预混合No more unwanted wearing of distributor pipe分散器管没有不必要的磨损Guide vanes spread the falling solid feed mixture properly around the burner cone导叶将下降的混合固体物料均匀分配到喷嘴锥周围Mixing zone 混合区Chain of e

10、vents 事件链Falling solid feed mixture hits the distributor cone下降的混合固体物料碰到分配器锥Distribution air spreads the solids across the reaction shaft 分配风将固体物料传播到反应塔四周Oxygen enriched process air discharges directly into distribution air flow and forms a controlled suspension between concentrate particles and oxy

11、gen富氧工艺风直接进入分配风、在精矿颗粒和氧气之间形成一个受控的悬浮体Each flow and its behaviour has been optimized using CFD modelling to ensure the optimal mixing.为保证最佳混合，应用CFD模型优化了每个流量及其行为。Distribution Air 分配风Distribution air is used in conjuction with process air velocity to control the distribution angle and thus the shape of

12、suspension in the reaction shaft分配风和工艺风流速一起用于控制分配角度，从而进一步控制反应塔悬浮体的形状Different nozzle configurations are available for different mixing patterns 不同的混合方式使用不同的喷口形状Adjustable sleeve for velocity control用于流速控制的可调节套筒Central Jet Distributor is equipped with velocity control sleeve中央喷射分配器装备有流速控制套筒With adjus

13、table sleeve the outlet discharge velocity of oxygen enriched process air flow can be directly controlled from DCS富氧工艺风出口流速可以使用可调节套筒直接从DCS控制Essential factor for successful mixing of concentrate and oxygen精矿和氧最佳混合的主要因素The velocity can be kept at an optimum even for a process air turndown ratio of 1:4

14、即使1:4的工艺风调节比时，流速仍保持最佳值Highest pressure loss in discharge annulus means even process air distribution to the reaction shaft流出环面的压力损失最高值意味着反应塔工艺风的均匀分配Principle of velocity control 流速控制原理Process air velocity is controlled by adjusting area used for discharge. This area can be expended or contracted by

15、moving the sleeve up and down via automatic controller工艺风流速通过调整区域控制，该区域可通过用自动控制器上下移动套筒而延伸或收缩Velocity is adjustable on whole feed range 整个料量范围的流速均可调Preferred velocity ranges from 60 to 120 m/s理想流速范围为60-120 m/sThe outlet flow angle is kept constant for the whole movement range整个移动范围的出口流量角度保持恒定Benefits

16、 好处Technical Benefits 技术方面的好处Turbulent mixing of concentrate and oxygen promotes quick ignition精矿和氧的剧烈混合促进快速点燃Elimination of concentrate particles getting through unburned消除未燃烧精矿颗粒Minimal slag sulphur content减少渣含SMiddle oxygen ensures oxidation also in the heart of the suspension中央氧保证悬浮体中心也氧化Fuel oi

17、l or natural gas can be injected via optional Middle Lance to introduce extra heat into suspension and furnace燃油或天然气可通过可选中央油枪喷入，将额外的热量引入悬浮体和炉子Wide scale for feed rates 料量范围宽Turn-down ratio of up to 1:4 for solid feed固体物料调节比可达1：4Capacity restrictions usually elsewhere, not in the burner产能限制通常不在喷嘴，而是在

18、别处Process Benefits 工艺方面的好处Coherent suspension均匀的悬浮体Decrease in flue dust formation降低烟尘产率Uniform reaction shaft wall heat load均匀反应塔墙热负荷Minimum leftover oxygen due to optimized combustion 由于优化了燃烧，降低了残余氧High oxidation efficiency means minimum weak acid production 氧化效率高意味着降低了稀酸产率Optimal concentrate oxid

19、ation rate优化了精矿的氧化率Smaller deviations at copper target percentage in both matte and slag chemistry冰铜和炉渣中的含铜量与目标值偏差减小Easier FSF temperature control使闪速炉的温度更容易控制Operational Benefits 操作方面的好处Fully automated 完全自动化Only basic parameters for operator, automation takes care of the rest操作者仅控制基本参数，其余由自动控制系统控制Sp

20、ecific alarms when needed (e.g. cooling water temperature, flow rates, etc.)必要时有特定报警（如冷却水温度、流量等）Easy to inspect & clean 易于检查和清理Minimal need for inspections & cleaning 降低了检查和清理的需要Flexible hoses enable quick and easy inspection without disconnecting by simply lifting up the Central Jet Distributor or

21、Distributor 弹性软管实现了不用拆除、只将中心喷射分配器或分配器提起即能对其快捷检查。Single burner minimizes maintenance work and time 单喷嘴减少了维护工作和维护时间Low number and easy replacement of wear parts 易损件数量少、容易更换Materials are resistant to abrasion, heat and sulphurous gases which means longer lifetime 材质为耐磨、耐热和耐含硫烟气，使其寿命延长In practice 100 %

22、burner availability 喷嘴可达到100的作业率Part details 部件详述Central Jet Distributor (CJD) 中心喷射分配器（CJD）Moving sleeve for adjusting process gas velocity at different flows移动套筒用于调节不同流量时的工艺风流速Water cooled shell to ensure long lifetime and prevent accretions水冷壳确保使用寿命长，且防止粘结Concentrate mixture distributed into four

23、feed sections to ensure an even feed混合精矿分配进4个截面，确保均匀加料Simple structure with downwards facing fittings allows an easy and quick installation (and removal)结构简单，安装和拆卸便捷快速 Low pressure loss due to aerodynamical design流体动力学设计，因此压力损失低Lifting lugs and quick couplings for easy installation and inspection 吊耳

24、和快速联轴器，使安装和检查容易进行Material: stainless steel 材质：不锈钢Distributor 分配器Blades to ensure that the concentrate stays evenly distributed叶片确保精矿被均匀分配Distribution air from distributor tip for mixing concentrate mixture with oxygen enriched process air分配器头部的分配风用于混合精矿和富氧工艺风Middle lance oxygen to ensure oxidation r

25、eactions also in the center of the suspension中央油枪氧气确保悬浮体中心也发生氧化反应Water cooled distributor cone to ensure long lifetime and prevent accretions水冷分配器锥确保使用寿命长且防止粘结Lifting lugs and quick couplings for easy installation and inspection吊耳和快速联轴器使安装和检查快速便捷Material: stainless steel材质：不锈钢Middle Lance 中央喷枪Middle

26、 Lance is used as a burner to introduce extra heat into the suspension and furnace中央喷枪用作一个喷嘴、将额外热量引入悬浮体和炉子Gives flexibility to furnace heat balance handling during feed stoppages在停料期间灵活掌握炉子热平衡Suitable for regular fuel oil/heavy fuel oil (oil lance) or natural gas/propane (gas lance)适用于普通燃油/重油（油枪）或天然

27、气/丙烷（气体喷枪）Lifting lugs and quick couplings for easy installation and inspection吊耳和快速联轴器使安装和检查便捷Material: stainless steel材质：不锈钢Air Chamber 风箱Air Chamber ensures that oxygen enriched process air is properly settled and mixed before discharging it to the reaction shaft风箱保证在富氧工艺风输送到反应塔之前充分停留和混合Inspectio

28、n glasses for visual inspection of burner operation视镜用于喷嘴操作的视觉检查Lifting lugs for easy installation and removal吊耳使安装和拆除容易进行Material: stainless steel材质：不锈钢Copper Blocks 铜水套Nesting Block 鸟巢水套Counterpart for adjustable sleeve可调节套筒的配对物Two separate cooling water circulations to ensure trouble-free operation2个单独的冷却水循环，保证无故障运行S