摘要：本设计是依据“云锡氯化法”处理难选贫锡中矿，火法工序所得收尘沉淀，利用氯化钠溶液进行浸出脱氯，得到一定湿度的氯化铅和锡精矿。按照给定的工艺流程、设计要求的年产量，计算出每个工序所需的量，从而进行工艺流程的物料平衡和水系平衡，目的在于在保持母液温度，保证浸出液中氯化铅不结晶析出的条件下过滤，从而减少氯化铅进入浸出底流的量，降低洗涤负荷。  

　　　本设计主要任务是确定设备的类型及型号，主体设备的设计，绘制主体设备搅拌槽的工业设计图、设备连接图和车间设备布置图，其中，车间设备布置与搅拌槽的设计是本设计的重点与核心。为了适应我国现代锡工业的发展需求,同时本着节能和获得最大经济效益的原则，并考虑环境保护的因素，本设计尽可能地采用新技术，力求设计更加合理，方便操作，为车间今后取得良好的经济效益奠定基础。

关键词：收尘沉淀；车间；设计

ABSTRACT：This design is based on "YunXi LvHuaFa" deal with difficult to choose lean tin separation middlings dominated the dust collecting process, precipitation, use of sodium chloride solution leaching ChuTuo chlorine, get certain humidity of chlorinated lead and tin ore concentrate. According to a given process flow, the design requirements, and calculates the annual production of every working procedure required quantity, and thus for the process of material balance and water balance, the aim is that keep temperature, ensure the mother liquor leaching solution of chlorinated lead not under the condition of crystallization precipitation filter, so as to reduce chlorinated lead into the flow of the leaching of washing load, reduce.

　　　This design main task is to determine the type of equipment and model, the design of the main equipment, draw the main equipment in the industrial design, mixing slot connected graph and workshop equipment layout, among them, the workshop equipment arrangement and the design of the mixing slot is the focal point of design and core. In order to adapt to the development of China's modern tin industrial demand, but in line with the energy saving and obtain the biggest economic benefits, and the principle of environmental protection, the design of the factors as much as possible to adopt new technology, and strive to design more reasonable, convenient operation, the future for workshop good economic benefit is obtained lay the foundation. 

Keywords: Dust collecting precipitation; Workshop; design