3.4、工艺流程描述 Process flow description
3.4.1原料上料系统Raw material feeding system
储存在石灰石堆棚内的粒度20～40mm的合格石灰石装在地坑筛内，两个地坑，每个地坑设置两个出料口，通过1#皮带机输送至筛分楼，经圆振筛筛分后粒度为20～40mm的合格石灰石通过2#皮带输送至预热器顶部料仓。小于20mm的石灰石直接落入石灰石筛余仓（储量：200t/个），石灰石筛余仓下设置有装车系统，定期将石灰石灰渣运输出厂。入窑原料中小于20mm的石灰石小于5%。在地坑处、筛分楼处、预热器顶均设置有岗位除尘，除尘灰就近进入输送系统后集中到石灰石粉料库内，排放浓度10mg/Nm3。
Qualified limestone of 20 to 40 m m stored in the limestone shed is installed in the pit sieve with two outlets for each pit delivered to the screening building through the 1 # belt machine and qualified limestone with particle size of 20 to 40 m m is transported to the top warehouse of the preheater through the 2 # belt.Limestone less than 20mm falls directly into the limestone sieve warehouse (reserves: 200t / one). A loading system is set under the limestone sieve warehouse to regularly transport the limestone ash slag from the factory.Limestone with less than 20mm is less than 5%.There are post dust removal at the pit, the screening building and the top of the preheater. After the dust removal ash enters the conveying system, it is concentrated into the limestone powder warehouse, with a discharge concentration of 10mg/Nm3.
3.4.2烧成系统Burning system
预热器受料仓中的物料经加料管送入预热器内的各独立仓室，石灰石、白云石在独立仓室内缓慢下移，经窑尾热气进行预热，废气进入窑尾废气处理系统， 已经部分分解的石灰石、白云石经预热器的液压推杆推动，通过加料室进入到回转窑内进行煅烧。煅烧后的成品经过竖式冷却机的冷却，温度被迅速降到 100℃ 以下，以提高成品的活性度。竖式冷却器内物料的冷却主要是通过二次风机提供的大量冷风来实现的。出冷却器的成品由链斗输送机输送到成品缓存库。成品缓存库出灰口设一套在线红外温度仪。
The materials in the preheater receiving warehouse are fed into the independent warehouses by the feeder duct. The limestone and dolomite move slowly down in the independent warehouse chamber through the kiln tail heat, and the waste gas enters the kiln tail waste gas treatment system. The partially decomposed limestone and dolomite are pushed by the hydraulic push rod of the preheater and calcined into the rotary kiln through the feeding chamber.The calcined finished product was cooled by a vertical cooler, and the temperature was rapidly lowered below 100℃ to improve the activity of the finished product.Cooling of the materials in the vertical cooler is mainly achieved through a large amount of cold air provided by the secondary fan.The finished product of the outgoing cooler is delivered by the chain bucket conveyor to the finished cache library.A set of online infrared thermometer is provided at the ash outlet of the finished product cache library.
燃料为天然气。燃烧器采用四通道天然气燃烧器， 一次、二次风机均为变频调速。
The fuel is natural gas.The burner adopts a four-channel natural gas burner, and both the primary and secondary fans are frequency conversion speed adjustment.
窑头厂房按照设备维修及耐材起吊需求配置电动葫芦。
The kiln head plant is equipped with electric gourd according to the equipment maintenance and resistant material lifting requirements.
3.4.3窑尾废气处理系统Kiln tail exhaust gas treatment system
出预热器的废气，经旋风除尘器、窑尾布袋除尘器净化（进布袋除尘器温度不能高于220℃），净化后的废气经脱硝（预留）、高温风机（变频调速）、烟囱排入大气。。高温风机房为可拆卸式隔音板结构。
The exhaust gas out of the preheater shall be purified by the cyclone dust collector and the kiln tail bag dust collector (the temperature of the inlet bag dust collector should not be higher than 220℃), and the purified waste gas shall be discharged into the atmosphere by denitration (reserved), high temperature fan (variable frequency speed adjustment) and chimney.The high temperature air machine room is a removable sound insulation board structure.
除尘灰由输送设备输送至烟气除尘灰仓内（储量：），仓下设置散装机，定期通过散装车运输出厂。
The dust removal ash shall be transported from the conveying equipment to the flue gas dust removal ash warehouse (reserve:), scattered installed under the warehouse and transported to the factory by bulk vehicles regularly.
3.4.4成品筛分粉磨储运系统
Finished product screening and grinding storage and transportation system
来自烧成系统的成品由板式输送机、1#NE100板链式提升机提升入YA1536圆振动筛，筛分后，大于10mm石灰块灰由1#输送带输送至1#，2#块状石灰仓内储存（仓储量500t/个），仓底设置汽车散装机；小于10mm的石灰粉储存在石灰石筛余粉灰仓内。粉磨后的物料经输送设备输送至NE斗提机提升送至石灰粉灰仓（储量500t/个），石灰粉仓下设置汽车散装机。在1#NE100板链式提升机出口设置有三通分料阀，可通过三通阀切换后直接进入石灰石筛余粉灰仓内，可调节块灰及石灰粉产量。在石灰储运筛分各扬尘点均设置有岗位除尘器，排放浓度10mg/Nm3。
The finished products from the firing system are lifted into the YA1536 circular vibrating screen by the plate conveyor and the 1#NE100 plate chain elevator. After screening, the lime block ash larger than 10mm is transported to 1# by the 1# conveyor belt, and stored in the 2# massive lime bin (storage capacity: 500T/piece). The bottom of the bin is set with a car bulk machine. The lime powder less than 10mm is stored in the limestone sieve residue powder ash bin. The material after grinding is transported to NE bucket lifting machine by conveying equipment and sent to lime powder and ash bin (reserve 500T/unit). The car bulk machine is set under lime powder bin. The outlet of 1#NE100 plate chain elevator is provided with a three-way discharging valve, which can be directly entered into the limestone screen residual powder ash bin after switching through the three-way valve, and the output of block ash and lime powder can be adjusted. Post dust removers are set in each dust point of lime storage and transportation screening, and the emission concentration is 10mg/Nm3.