水泥1-化学分析.ppt

文档介绍：水泥实验部分——水泥化学分析实验
水泥生产基本知识回顾
生产原料
主要原料
石灰石
粘土
辅助原料
校正原料
矿化、助熔原料
生产工艺
原料
开采破碎
烘干均化
配料
生料粉磨
生料
熟料煅烧
熟料
石膏混合材
水泥粉磨
水泥
包装
散装
1. BLASTING : The raw materials that are used to manufacture cement (mainly limestone and clay) are blasted from the quarry.
Quarry face
1. BLASTING
2. TRANSPORT
3. CRUSHING AND TRANSPORTATION : The raw materials, after crushing, are transported to the plant by conveyor. The plant stores the materials before they are homogenized.
3. CRUSHING & TRANSPORTATION
2. TRANSPORT : The raw materials are loaded into a dumper.
crushing
conveyor
Next
dumper
storage at the plant
loader
THE CEMENT MANUFACTURING PROCESS
THE CEMENT MANUFACTURING PROCESS
1. RAW GRINDING : The raw materials are very finely ground in order to produce the raw mix.
1. RAW GRINDING
Raw grinding and burning
2. BURNING
2. BURNING : The raw mix is preheated before it goes into the kiln, which is heated by a flame that can be as hot as 2000 °C. The raw mix burns at 1500 °C producing clinker which, when it leaves the kiln, is rapidly cooled with air fans. So, the raw mix is burnt to produce clinker : the basic material needed to make cement.
conveyor
Next
Raw mix
kiln
cooling
Back
preheating
clinker
storage at the plant
Raw mill
THE CEMENT MANUFACTURING PROCESS
: The clinker and the gypsum are very finely ground giving a “pure cement”. Other secondary additives and cementitious materials can also be added to make a blended cement.
1. GRINDING
Grinding, storage, packing, dispatch
2. STORAGE, PACKING, DISPATCH
2. STORAGE, PACKING, DISPATCH :The cement is stored in silos before being dispatched either in bulk or in bags to its final destination.
Back
clinker storage
Gypsum and the secondary additives are added to the clinker.
silos
Home page
dispatch
bags
Finish grinding
cement
水泥生产线