Technology Proposal of 8 Thousand MT Push-pull Type Pickling Line8 万吨推拉式酸洗机组技术方案2Content目 录Appendix 1 Process flow, parameter and product附件 1 工艺流程、参数及产品 Appendix 2 Technology specification of equipment附件 2 设备技术规格书 3Appendix 1附件一Process flow, parameter and product工艺流程、参数及产品Chapter 1: Product mix 产品大纲 Material: Hot rolled common carbon steel钢种：热轧普碳钢 Strip thickness: 24mm带钢厚度 Strip width: 610mm带钢宽度 Specification of final product: 24610 mm成品规格 Coil inside diameter: 510mm钢卷内径 Coil outside diameter: Max. 1800mm钢卷外径 Max. coil weight: 10MT最大卷重 Production capacity: 80 thousand MT/year hot rolled pickled steel coil产量：8 万吨 /年酸洗热轧钢卷 Working time per year: 6500H年工作时间Chapter 2: Production capacity生产能力Process parameter of pickling section4酸洗段工艺参数： 3-section acid tank: 11.753=35.25m节酸槽 Pickling medium: HCL 酸洗介质: 盐酸 Pickling concentration: 518%酸洗浓度 Pickling temperature: 6085 酸洗温度 Line speed 80m/min. (Max.), pickling time: 30s机组速度 80 米/分(Max) 酸洗时间：30 秒 Threading speed: 30m/min.穿带速度 Average specification: 2.5530平均规格 Average coil weight: 8MT平均卷重 Production capacity calculation机组产量计算 Running direction: from right to left 机组右进左出Chapter 3: Main technology parameter主要技术参数Parameter name参数名称Entry入口Exit出口5Strip thickness带钢厚度(mm)2.04.0 2.04.0Strip width带钢宽度(mm)610 610Getting across without edge cutting is allowed.允许不切边通过Coil inner diameter钢卷内径(mm)508 508Max. outer diameter of coil钢卷最大外径(mm)1800 1800Max. coil weight最大卷重(t)10 10Line speed机组速度(m/min.)80Annual production capacity (10 thousand MT)年生产能力（万吨）6Total length of acid tank酸槽总长度(m)11.753=35.25Total length of rinsing tank冲洗槽总長度(m)248Picling medium酸洗介质Industry HCL, concentration 18%工业盐酸，浓度为 18%Min. pickling time最少酸洗时间 (s)30Chapter 4: Process flow, medium and public facilities工艺流程、介质和公用设施 Process flow 工艺流程：Coil loadinguncoilingstraighteninghead cutting, angle cuttingpicklingrinsing6dryingedge cuttingoilingcoilingcoil unloadingbundlingweighingstoring上料开卷矫直切头、切角酸洗冲洗烘干剪边涂油卷取卸料打捆称重入库 Medium consuming/discharging quantity介质消耗/排放量:After the acid liquid is used to a certain extent, the acid liquid will not have the activity. Normally, when the Fe ion concentration gets to about 180g/L, it will become into the waste liquid and must be discharged. The discharging quantity of the waste liquid in the line is about 0.5t/h. The acid content of the waste liquid is about 50kg/t (3-5%).酸液使用到一定程度，酸液没有了活性。通常铁离子浓度达到约 180g/L 左右，成为废液，必须排放。本机组的酸洗废液排放量大约 0.5t/h，废液的含酸量约 50kg/t (3-5%)。New acid consumption: New acid supplying (or consumption) is about 25-31kg per ton of steel and the concentration is 28-31%.新酸用量：新酸补充（或耗量）约为每酸洗一吨钢耗酸 25-31kg，浓度：28-31%Steam consumption: 3t/h蒸汽用量Power required: 550KVA机组设备装机容量Waste water discharging quantity for rinsing: 4m3/h, discharged to the dirt water treating station冲洗废水排放量： 4m3/h 排放到污水处理站Water supplying quantity for rinsing: 4m3/h (soft water)冲洗用补充水量： 4m3/h （软水） Public facilities:公用设施：Workshop: 18 x 90-95m; Rail height of traveling crane: 8m7厂房： 18 x 90-95m; 行车轨道高：8mTravelling crane: 15MT, 2pcs行车： 15 吨 2 台Appendix 2附件二Technology specification of equipment设备技术规格书1. General introduction 总概述:This pickling line is pull-push type and adopts the advanced shallow tank turbulent flow pickling technology. The process equipments and technology provided is reliable, advanced, mature and proved by producing practice and can satisfy users with stable production and long-term running. This process has the features of reasonable structure, high efficiency working, low consuming production, convenient operation, less fault.本报价的酸洗机组为推拉式酸洗机组，机组采用目前较为先进的浅槽酸洗技术。所提供的工艺设备与技术，是经生产实践证明了的、可靠的、先进的、成熟的，可满足买方稳定生产和长期运行的成套设备和技术。该技术具有设备结构合理，作业效率高，生产消耗低，操作方便，设备运行故障少等特点。For this pickling line, the completed course of pickling steel strips from pay-off reel to tension reel is finished all online. The arrangement can simplify the equipment structure and also can make the pedestrian passageway smooth. Meanwhile, considering the local geology conditions, all process equipments excepting the payoff reel and the tension reel adopt the overhead type for installing (running plane height of the steel strip is 2.2m). So, this can reduce the pit depth of the acid liquid circulation system (pit depth is about -2.3m).所设计的酸洗机组，钢带酸洗处理从开卷到卷取全部过程均在线完成。这种布置一方面可简化设备结构，另一方面可使人行通道畅通。同时考虑到当地的地质条件，除开卷机和卷取机外，全部工艺设备采取高架形式安装（钢带运行平面高度为 2.2m） 。这样可减少酸液循环系统地坑的深度8（地坑深度约-2.3m ） 。There is a fixed coil saddle at the inlet of pickling line and it can store 2 steel coils. The steel coil stored on the saddle can be transferred by one loading car driven by the hydraulic system onto the coil drum of the payoff reel. The line adopts the cantilever type of payoff reel. Pickling line adopts cantilever pay-off reel, the expansion of pay-off reel drum is driven by hydraulic cylinder at one end of drum spindle and pay-off reel stand can move on the stand base by hydraulic cyli