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5000tpd活(huo)性(xing)石(shi)灰生产工艺

2022-05-10

       石(shi)(shi)灰是(shi)经济中不(bu)可(ke)缺少的重要原(yuan)料,广(guang)泛应用(yong)(yong)于(yu)(yu)冶金、建(jian)(jian)材、石(shi)(shi)化(hua)、环保(bao)、食(shi)品等行(xing)业(ye)。随着全球经济的不(bu)断发展,石(shi)(shi)灰产量呈逐(zhu)年增加的趋势。石(shi)(shi)灰主要用(yong)(yong)于(yu)(yu)钢铁、化(hua)工、建(jian)(jian)筑、建(jian)(jian)材、农(nong)业(ye)、医(yi)药(yao)和环境(jing)保(bao)护。对于(yu)(yu)石(shi)(shi)灰的深加工行(xing)业(ye),如(ru)轻质(zhi)碳酸钙行(xing)业(ye),其用(yong)(yong)途更为广(guang)泛,不(bu)仅可(ke)以用(yong)(yong)于(yu)(yu)涂(tu)料、涂(tu)料、腻(ni)子粉、PVC管(guan)等建(jian)(jian)材行(xing)业(ye),还可(ke)以用(yong)(yong)于(yu)(yu)食(shi)品、医(yi)药(yao)、日化(hua)等行(xing)业(ye)。发展前景广(guang)阔。


       石灰(hui)窑(yao)(yao)是石灰(hui)生(sheng)产(chan)(chan)的(de)核心设备。自主创新和开发新型窑(yao)(yao)型、新技(ji)术、合理(li)配置石灰(hui)窑(yao)(yao)和大(da)型石灰(hui)窑(yao)(yao)是石灰(hui)工业规模化和自动(dong)化的(de)重要途径(jing)。与(yu)其他类型的(de)石灰(hui)煅烧窑(yao)(yao)相比,回转窑(yao)(yao)具有(you)生(sheng)产(chan)(chan)能力大(da)、产(chan)(chan)品(pin)活(huo)性高(gao)(gao)、质量均匀(yun)稳(wen)定、对(dui)原料适应性强等(deng)特点(dian)。燃(ran)料灰(hui)对(dui)产(chan)(chan)品(pin)污(wu)染小,自动(dong)化程度高(gao)(gao),控(kong)制系(xi)统简单,操作方便,劳(lao)动(dong)生(sheng)产(chan)(chan)率高(gao)(gao),窑(yao)(yao)体结构(gou)简单,气流顺畅,含硫烟气能及时排放,燃(ran)料中(zhong)的(de)硫不易粘附,因此产(chan)(chan)品(pin)中(zhong)含有(you)硫。由(you)于其量少的(de)优点(dian),它(ta)占有(you)非常重要的(de)地位。


       本文详细(xi)介(jie)绍(shao)了(le)5×1000t/d活性石灰回转窑项目的(de)生产工艺和技术(shu)特(te)点。

  

1、项目规模、成品产品及建设范围


(1) 设计规(gui)模:新建5座1000t/d活性石灰回(hui)(hui)转(zhuan)(zhuan)窑(yao),其中4~1000t/d回(hui)(hui)转(zhuan)(zhuan)窑(yao)生(sheng)产(chan)(chan)石灰,1000t/d回(hui)(hui)转(zhuan)(zhuan)炉生(sheng)产(chan)(chan)轻烧白云石。

(2) 产(chan)品(pin)品(pin)种(zhong):活性(xing)石(shi)灰(hui)块灰(hui)、活性(xing)石(shi)灰(hui)粉灰(hui)、轻烧(shao)白(bai)云石(shi)灰(hui)。轻烧(shao)白(bai)云石(shi)粉煤(mei)灰(hui)、脱(tuo)硫粉煤(mei)灰(hui)。

(3) 建(jian)设范(fan)围(wei):包括(kuo)原料(liao)储(chu)存系(xi)(xi)统(tong)、进(jin)料(liao)系(xi)(xi)统(tong)、煅烧(shao)回转窑(yao)系(xi)(xi)统(tong)、废气处理系(xi)(xi)统(tong)(预留(liu)脱硝系(xi)(xi)统(tong))、成(cheng)品储(chu)存、破碎筛分(fen)分(fen)散系(xi)(xi)统(tong)、成(cheng)品气力输送(song)系(xi)(xi)统(tong)、脱硫装置制(zhi)粉系(xi)(xi)统(tong)、环(huan)境除尘系(xi)(xi)统(tong)、给排(pai)水系(xi)(xi)统(tong)、,循环(huan)水系(xi)(xi)统(tong)、PLC自(zi)动(dong)控制(zhi)系(xi)(xi)统(tong)及仪表测试系(xi)(xi)统(tong)、通(tong)信系(xi)(xi)统(tong)、监控系(xi)(xi)统(tong)、消防系(xi)(xi)统(tong)等(deng)。


2、设计指南和主要原则


(1) 采用(yong)成熟可靠的新(xin)工艺和技(ji)术,技(ji)术成熟、经济(ji)合理(li)、实用(yong)可靠。

(2) 注重环保(bao),使用比较好(hao)的除尘设(she)施,使其(qi)符合企(qi)业所在(zai)地的环保(bao)标(biao)准。

(3) 所(suo)有粉尘回收。在设(she)计中(zhong),应尽可能减少(shao)材料的(de)运输和跌落,对(dui)所(suo)有尘点应划分(fen)不同的(de)除尘区(qu)域。严格执行环(huan)保(bao)标准,实现达标排(pai)放(fang)。

(4) 在设备选型(xing)上,本着“可靠实用、节约投资、技术成(cheng)熟、节能降耗”的原则,尽可能统一规(gui)格型(xing)号(hao),以(yi)管(guan)理生产,减少(shao)备件的种类和(he)数量(liang)。


3、生产工艺和设备


3.1生产工艺


(1) 原料进料系统


       满(man)足回转窑焙烧要(yao)求的20~50mm石灰(hui)(hui)(hui)石和白(bai)云(yun)(yun)石经原(yuan)(yuan)料场(chang)筛分(fen)后,分(fen)别(bie)由(you)皮带(dai)机从原(yuan)(yuan)料场(chang)运至石灰(hui)(hui)(hui)厂(chang)石灰(hui)(hui)(hui)石库和白(bai)云(yun)(yun)石库。白(bai)云(yun)(yun)石储(chu)层中的白(bai)云(yun)(yun)石和石灰(hui)(hui)(hui)石储(chu)层中石灰(hui)(hui)(hui)石分(fen)别(bie)通过带(dai)式输送(song)机送(song)至预热(re)器。


(2) 回转窑焙烧系统


       石(shi)(shi)(shi)(shi)灰石(shi)(shi)(shi)(shi)/白云(yun)(yun)(yun)石(shi)(shi)(shi)(shi)进入预(yu)(yu)热(re)(re)(re)器(qi)(qi)(qi)后(hou),在(zai)(zai)(zai)窑(yao)(yao)(yao)(yao)尾经1100℃的(de)(de)(de)(de)烟(yan)气(qi)(qi)(qi)预(yu)(yu)热(re)(re)(re),部分石(shi)(shi)(shi)(shi)灰石(shi)(shi)(shi)(shi)/白云(yun)(yun)(yun)石(shi)(shi)(shi)(shi)在(zai)(zai)(zai)预(yu)(yu)热(re)(re)(re)器(qi)(qi)(qi)中(zhong)分解(jie)(jie)。预(yu)(yu)热(re)(re)(re)后(hou)的(de)(de)(de)(de)物料(liao)(liao)由液压推杆推出(chu),并通(tong)(tong)(tong)(tong)过(guo)输送(song)斜槽(cao)输送(song)至回(hui)(hui)转窑(yao)(yao)(yao)(yao)。材料(liao)(liao)在(zai)(zai)(zai)回(hui)(hui)转窑(yao)(yao)(yao)(yao)中(zhong)进行焙(bei)烧(shao)和分解(jie)(jie),焙(bei)烧(shao)的(de)(de)(de)(de)石(shi)(shi)(shi)(shi)灰/白云(yun)(yun)(yun)石(shi)(shi)(shi)(shi)进入立式冷却器(qi)(qi)(qi)。由底部送(song)来的(de)(de)(de)(de)冷空(kong)气(qi)(qi)(qi)冷却后(hou),通(tong)(tong)(tong)(tong)过(guo)振动给(ji)料(liao)(liao)机排(pai)入集料(liao)(liao)斗(dou),然后(hou)通(tong)(tong)(tong)(tong)过(guo)链斗(dou)送(song)至成品系统。冷空(kong)气(qi)(qi)(qi)在(zai)(zai)(zai)冷却器(qi)(qi)(qi)中(zhong)冷却材料(liao)(liao)的(de)(de)(de)(de)同时被(bei)加(jia)热(re)(re)(re),并通(tong)(tong)(tong)(tong)过(guo)窑(yao)(yao)(yao)(yao)罩进入窑(yao)(yao)(yao)(yao)内(nei),作为(wei)燃(ran)料(liao)(liao)燃(ran)烧(shao)的(de)(de)(de)(de)二次空(kong)气(qi)(qi)(qi)参与燃(ran)烧(shao)。回(hui)(hui)转窑(yao)(yao)(yao)(yao)使用的(de)(de)(de)(de)燃(ran)料(liao)(liao)分别通(tong)(tong)(tong)(tong)过(guo)煤气(qi)(qi)(qi)管和煤粉管送(song)至回(hui)(hui)转窑(yao)(yao)(yao)(yao)窑(yao)(yao)(yao)(yao)头车间,并从(cong)(cong)窑(yao)(yao)(yao)(yao)头通(tong)(tong)(tong)(tong)过(guo)燃(ran)烧(shao)器(qi)(qi)(qi)在(zai)(zai)(zai)回(hui)(hui)转窑(yao)(yao)(yao)(yao)内(nei)燃(ran)烧(shao)。燃(ran)料(liao)(liao)燃(ran)烧(shao)产生的(de)(de)(de)(de)热(re)(re)(re)烟(yan)气(qi)(qi)(qi)与物料(liao)(liao)焙(bei)烧(shao)加(jia)热(re)(re)(re)后(hou)物料(liao)(liao)分解(jie)(jie)产生的(de)(de)(de)(de)废气(qi)(qi)(qi)一起(qi)从(cong)(cong)窑(yao)(yao)(yao)(yao)尾排(pai)出(chu),并通(tong)(tong)(tong)(tong)过(guo)输送(song)斜槽(cao)进入预(yu)(yu)热(re)(re)(re)器(qi)(qi)(qi)对石(shi)(shi)(shi)(shi)灰石(shi)(shi)(shi)(shi)/白云(yun)(yun)(yun)石(shi)(shi)(shi)(shi)进行预(yu)(yu)热(re)(re)(re)。石(shi)(shi)(shi)(shi)灰石(shi)(shi)(shi)(shi)/白云(yun)(yun)(yun)石(shi)(shi)(shi)(shi)预(yu)(yu)热(re)(re)(re)后(hou)的(de)(de)(de)(de)烟(yan)气(qi)(qi)(qi)从(cong)(cong)预(yu)(yu)热(re)(re)(re)器(qi)(qi)(qi)排(pai)出(chu),经除尘(chen)器(qi)(qi)(qi)除尘(chen),然后(hou)通(tong)(tong)(tong)(tong)过(guo)排(pai)气(qi)(qi)(qi)机排(pai)入大气(qi)(qi)(qi)。主要(yao)技术参数见表1。


  

(3) 成品储运系统


       冷(leng)却后,轻(qing)(qing)(qing)烧(shao)(shao)白(bai)云(yun)(yun)石(shi)(shi)由(you)输(shu)送(song)(song)机(ji)送(song)(song)至轻(qing)(qing)(qing)烧(shao)(shao)白(bai)云(yun)(yun)石(shi)(shi)缓存,缓存底(di)部设置振动给料机(ji)。然后,物料通过振动给料机(ji)、皮带输(shu)送(song)(song)机(ji)和板(ban)式斗式提升机(ji)输(shu)送(song)(song)至双(shuang)层(ceng)(ceng)双(shuang)层(ceng)(ceng)布袋筛(shai)(shai)(shai)进行(xing)(xing)筛(shai)(shai)(shai)分。其(qi)中,筛(shai)(shai)(shai)料(0~3mm)进入(ru)(ru)轻(qing)(qing)(qing)烧(shao)(shao)白(bai)云(yun)(yun)石(shi)(shi)粉(fen)仓;筛(shai)(shai)(shai)料(15~50mm)进入(ru)(ru)轻(qing)(qing)(qing)烧(shao)(shao)白(bai)云(yun)(yun)石(shi)(shi)仓库,也可以直(zhi)接进入(ru)(ru)轻(qing)(qing)(qing)烧(shao)(shao)的(de)白(bai)云(yun)(yun)石(shi)(shi)碎(sui)屑仓库;筛(shai)(shai)(shai)分材料(3~15 mm)直(zhi)接进入(ru)(ru)轻(qing)(qing)(qing)度燃(ran)烧(shao)(shao)的(de)白(bai)云(yun)(yun)石(shi)(shi)碎(sui)屑库。破碎(sui)机(ji)中的(de)物料送(song)(song)至立式复合(he)破碎(sui)机(ji)进行(xing)(xing)破碎(sui),破碎(sui)的(de)轻(qing)(qing)(qing)烧(shao)(shao)白(bai)云(yun)(yun)石(shi)(shi)进入(ru)(ru)单层(ceng)(ceng)倍频筛(shai)(shai)(shai)进行(xing)(xing)筛(shai)(shai)(shai)分。筛(shai)(shai)(shai)分进料(0~3mm)直(zhi)接进入(ru)(ru)轻(qing)(qing)(qing)烧(shao)(shao)白(bai)云(yun)(yun)石(shi)(shi)粉(fen)仓,筛(shai)(shai)(shai)分进料(>3mm)返回(hui)轻(qing)(qing)(qing)烧(shao)(shao)白(bai)云(yun)(yun)石(shi)(shi)破碎(sui)机(ji)。


       冷却(que)后(hou),活(huo)性石(shi)(shi)灰(hui)(hui)(hui)(hui)(hui)(hui)由输(shu)送(song)机(ji)(ji)输(shu)送(song)至(zhi)石(shi)(shi)灰(hui)(hui)(hui)(hui)(hui)(hui)缓存(cun)。缓存(cun)底部(bu)装(zhuang)有振动(dong)给料(liao)(liao)机(ji)(ji)。物(wu)料(liao)(liao)由振动(dong)给料(liao)(liao)机(ji)(ji)、皮带输(shu)送(song)机(ji)(ji)和板链斗式(shi)(shi)提(ti)升(sheng)机(ji)(ji)输(shu)送(song)至(zhi)双层(ceng)多频筛(shai)(shai)进(jin)行(xing)(xing)(xing)筛(shai)(shai)分(fen)。筛(shai)(shai)料(liao)(liao)(0~3mm)进(jin)入(ru)石(shi)(shi)灰(hui)(hui)(hui)(hui)(hui)(hui)粉(fen)仓(cang);筛(shai)(shai)料(liao)(liao)(15~50mm)进(jin)入(ru)石(shi)(shi)灰(hui)(hui)(hui)(hui)(hui)(hui)块仓(cang),也可以直(zhi)接(jie)进(jin)入(ru)石(shi)(shi)灰(hui)(hui)(hui)(hui)(hui)(hui)渣(zha)仓(cang);筛(shai)(shai)分(fen)材(cai)料(liao)(liao)(3~15mm)可直(zhi)接(jie)进(jin)入(ru)石(shi)(shi)灰(hui)(hui)(hui)(hui)(hui)(hui)粉(fen)储存(cun),也可进(jin)入(ru)脱(tuo)硫粉(fen)系统。破(po)(po)碎(sui)机(ji)(ji)中的物(wu)料(liao)(liao)送(song)至(zhi)立(li)式(shi)(shi)复合破(po)(po)碎(sui)机(ji)(ji)进(jin)行(xing)(xing)(xing)破(po)(po)碎(sui),碎(sui)石(shi)(shi)灰(hui)(hui)(hui)(hui)(hui)(hui)进(jin)入(ru)单层(ceng)多频筛(shai)(shai)进(jin)行(xing)(xing)(xing)筛(shai)(shai)分(fen)。筛(shai)(shai)上的物(wu)料(liao)(liao)(>3mm)返回石(shi)(shi)灰(hui)(hui)(hui)(hui)(hui)(hui)破(po)(po)碎(sui)机(ji)(ji),筛(shai)(shai)下的物(wu)料(liao)(liao)(0~3mm)进(jin)入(ru)石(shi)(shi)灰(hui)(hui)(hui)(hui)(hui)(hui)粉(fen)筒仓(cang)。


(4) 脱硫剂制粉系统


     ;  进(jin)(jin)入脱硫(liu)剂(ji)制粉系统的石(shi)灰进(jin)(jin)入磨机(ji)的进(jin)(jin)料(liao)仓(cang),进(jin)(jin)料(liao)仓(cang)中的石(shi)灰由皮带(dai)计量(liang)给料(liao)机(ji)送至粉磨系统。研磨后,合格尺寸的石(shi)灰由旋风除尘器和布(bu)袋除尘器收集,然后进(jin)(jin)入脱硫(liu)剂(ji)粉仓(cang)。


(5) 成品交付系统


       大块活性(xing)石灰和(he)轻(qing)质煅烧白(bai)云石通过带(dai)式输(shu)(shu)(shu)送(song)(song)机(ji)输(shu)(shu)(shu)送(song)(song)至炼钢转运(yun)站。成(cheng)品料仓配有装(zhuang)载装(zhuang)置,在特殊情况下,成(cheng)品可以用汽(qi)车(che)运(yun)输(shu)(shu)(shu)出去。粉状(zhuang)活性(xing)石灰、粉状(zhuang)轻(qing)烧白(bai)云石和(he)脱硫(liu)剂通过气力输(shu)(shu)(shu)送(song)(song)输(shu)(shu)(shu)送(song)(song)至烧结厂(chang)和(he)球(qiu)团厂(chang)。成(cheng)品粉仓设有装(zhuang)车(che)装(zhuang)置,特殊情况下成(cheng)品可由槽(cao)车(che)运(yun)出。


(6) 石灰工艺流程和轻烧白云石工艺流程示意图


       石灰和轻烧白云石的工艺流程见图2和图3:


  

3.2生产工艺特点

3.2.1尺寸


       该项目分为两(liang)个阶段。初(chu)始阶段建(jian)设5×1000t/d回转(zhuan)(zhuan)窑,中期阶段计划(hua)再建(jian)设一座3X1000t/d回转(zhuan)(zhuan)炉,这对(dui)大型石灰(hui)工程具有里程碑意义。


3.2.2产品更多


       本(ben)项目的(de)原(yuan)料不仅是石(shi)(shi)(shi)灰(hui)(hui)石(shi)(shi)(shi),还包(bao)括(kuo)白(bai)云石(shi)(shi)(shi),原(yuan)料复杂。同时(shi),生产的(de)产品包(bao)括(kuo)石(shi)(shi)(shi)灰(hui)(hui)块灰(hui)(hui)、石(shi)(shi)(shi)灰(hui)(hui)粉灰(hui)(hui)、轻烧白(bai)云石(shi)(shi)(shi)灰(hui)(hui)、轻燃(ran)白(bai)云石(shi)(shi)(shi)粉灰(hui)(hui)、脱硫(liu)剂灰(hui)(hui)。原(yuan)材料和成品的(de)复杂类型也对整个(ge)生产线的(de)设计提出(chu)了更(geng)高的(de)要求(qiu)。


3.2.3多系统、复杂布局


本项目的主要系统包括以下部分:


(1) 原料进料系(xi)统:1座石灰石仓(cang)(cang)库(ku)、1座大理石仓(cang)(cang)库(ku);

(2) 回(hui)转(zhuan)(zhuan)窑焙烧系统:5个回(hui)转(zhuan)(zhuan)窑;

(3) 成品缓存系统:2个活性石灰缓存库和1个轻烧白云石缓存库;

(4) 成品筛(shai)分、破碎(sui)、储运系统:1座(zuo)石(shi)灰(hui)渣库、1座(zuo)石(shi)灰(hui)粉(fen)灰(hui)库、1个(ge)石(shi)灰(hui)块灰(hui)库、一座(zuo)轻(qing)烧白云(yun)石(shi)渣库、一个(ge)轻(qing)烧白云(yun)石(shi)粉(fen)灰(hui)库和一座(zuo)轻(qing)燃白云(yun)石(shi)灰(hui)库;

(5) 脱硫剂制粉系(xi)统:3个(ge)磨机进料(liao)仓,1个(ge)脱硫剂粉仓;

(6) 成(cheng)品输(shu)送(song)(song)(song)(song)系统:石(shi)灰和轻烧白云石(shi)粉通(tong)过(guo)气(qi)力输(shu)送(song)(song)(song)(song)输(shu)送(song)(song)(song)(song)到烧结厂(chang)(chang),并有加载接口(kou)(kou)(kou);块(kuai)状(zhuang)灰通(tong)过(guo)带式输(shu)送(song)(song)(song)(song)机输(shu)送(song)(song)(song)(song)至炼钢厂(chang)(chang)接口(kou)(kou)(kou)处的转运站,并设有装车接口(kou)(kou)(kou);脱硫剂通(tong)过(guo)气(qi)力输(shu)送(song)(song)(song)(song)送(song)(song)(song)(song)至烧结厂(chang)(chang)和球团厂(chang)(chang),并有加载接口(kou)(kou)(kou);

(7) 煤(mei)粉(fen)(fen)储(chu)运系(xi)统:3个煤(mei)粉(fen)(fen)仓库(ku)、煤(mei)粉(fen)(fen)和煤(mei)气(qi)管道(dao)。

        窑(yao)尾(wei)(wei)区:窑(yao)尾(wei)(wei)区主要是(shi)回转(zhuan)窑(yao)的除尘系(xi)统(tong)、原(yuan)(yuan)料(liao)库、综(zong)合电气室(shi)、循环水系(xi)统(tong)等设(she)施。原(yuan)(yuan)料(liao)仓库布(bu)置在(zai)陆域东(dong)侧,靠近钢铁原(yuan)(yuan)料(liao)场,皮带连(lian)接长度(du)尽(jin)量缩短。五个回转(zhuan)窑(yao)的除尘系(xi)统(tong)集中布(bu)置在(zai)窑(yao)尾(wei)(wei),综(zong)合电气室(shi)位于电力负荷大的设(she)施附近。

       回转窑区:主要包(bao)括5个回转窑和(he)窑头(tou)厂。5台回转窑并(bing)排(pai)布置,与窑头(tou)厂相连。

       窑头区(qu):主要包括石灰成(cheng)品(pin)库、白云(yun)石成(cheng)品(pin)库、煤粉储运系统(tong)、除(chu)尘系统(tong)等设施。该区(qu)域是本(ben)装(zhuang)置(zhi)的(de)主要运输区(qu)域,可(ke)能(neng)产生粉尘。集中布置(zhi)成(cheng)品(pin)仓库和除(chu)尘系统(tong)可(ke)以(yi)减少对石灰 装(zhuang)置(zhi)办公区(qu)(综合电气室)的(de)影响。

       综上(shang)所(suo)述,工(gong)厂(chang)总体(ti)布局合理,管理方便(bian),工(gong)艺流程顺(shun)畅,功能(neng)分区明(ming)显,设施相对(dui)集中(zhong)紧凑,不(bu)仅(jin)节省土地,节省投资,而且保(bao)证完整(zheng),有利于施工(gong)、生产和维护。


3.2.4新型回转(zhuan)窑技(ji)术的应用


       通(tong)过多年(nian)的自主(zhu)研发和(he)实践经(jing)验的积累(lei),我公司在本项(xiang)目中应(ying)用了(le)(le)大量(liang)新型(xing)回转(zhuan)窑(yao)技术,确保了(le)(le)回转(zhuan)窑(yao)系统的节能、环保、较高的效率(lv)。表2列出(chu)了(le)(le)应(ying)用的具体(ti)新技术。

   

    

3.2.5实现自动控制、监控和过程控制功能


       为了确(que)保完(wan)整(zheng),便于对主要生产设(she)备的运行和(he)(he)(he)(he)操作进(jin)行管理和(he)(he)(he)(he)监(jian)控(kong),在原料(liao)(liao)进(jin)料(liao)(liao)系(xi)统(tong)(tong)(tong)、成(cheng)品缓存系(xi)统(tong)(tong)(tong)、成(cheng)品筛分(fen)和(he)(he)(he)(he)破碎、储存和(he)(he)(he)(he)运输系(xi)统(tong)(tong)(tong)、成(cheng)品装运系(xi)统(tong)(tong)(tong)等场(chang)所设(she)置(zhi)了摄(she)像机(ji)监(jian)控(kong)点(dian)。网络视频信号通过光(guang)缆连接到(dao)视频监(jian)控(kong)系(xi)统(tong)(tong)(tong)的网络交(jiao)换(huan)机(ji)和(he)(he)(he)(he)相(xiang)应(ying)的视频服(fu)务(wu)器(qi)(qi)(qi),并(bing)在控(kong)制(zhi)室内设(she)置(zhi)大屏幕显示单元。窑头(tou)车间阀组、燃烧器(qi)(qi)(qi)设(she)置(zhi)有(you)毒气体检测报(bao)警系(xi)统(tong)(tong)(tong)。该(gai)系(xi)统(tong)(tong)(tong)由气体报(bao)警控(kong)制(zhi)器(qi)(qi)(qi)、有(you)毒气体探测器(qi)(qi)(qi)(一氧化(hua)碳(tan)介(jie)质)和(he)(he)(he)(he)声光(guang)报(bao)警器(qi)(qi)(qi)组成(cheng)。


       过程控(kong)制(zhi)范(fan)围包括(kuo)5x1000T/D回(hui)转窑系(xi)统(tong)(tong)及其辅(fu)助设(she)施生产过程的自动(dong)控(kong)制(zhi)和(he)监(jian)控(kong)。主要包括(kuo)回(hui)转窑、燃料(liao)(liao)系(xi)统(tong)(tong)、原料(liao)(liao)和(he)成品、煅烧系(xi)统(tong)(tong)除(chu)(chu)尘、循环水和(he)原料(liao)(liao)和(he)成品除(chu)(chu)尘的外部管线(包括(kuo)窑头和(he)转运站)等配套(tao)系(xi)统(tong)(tong)。


       自动(dong)控(kong)制(zhi)系(xi)统(tong)(tong)(tong)采用两级控(kong)制(zhi),基(ji)本自动(dong)控(kong)制(zhi)系(xi)统(tong)(tong)(tong)(L1),以控(kong)制(zhi)系(xi)统(tong)(tong)(tong)为核(he)心(xin),系(xi)统(tong)(tong)(tong)总体结构考虑(lv)EIC一体化设计,以PLC为控(kong)制(zhi)核(he)心(xin),具有数(shu)据采集与(yu)处理、顺序控(kong)制(zhi)、过(guo)程控(kong)制(zhi)、参(can)数(shu)指示(shi)等功(gong)(gong)能。超限报警、设备状态监测等功(gong)(gong)能,构成了功(gong)(gong)能划分合理、层(ceng)次分明(ming)、完整(zheng)、较高的效率、开(kai)放的自动(dong)控(kong)制(zhi)系(xi)统(tong)(tong)(tong)。


       石灰窑综合控制系统(tong)(L2),以(yi)生产(chan)管理(li)系统(tong)为核心,实现(xian)数据采集、集成、存储和(he)查(cha)询,通过对工艺数据的分析和(he)处(chu)理(li),利(li)用数学模型进行计算,使(shi)系统(tong)在经济状态下稳定(ding)运行,优化和(he)降(jiang)低中间运行效果,生产(chan)高质量的产(chan)品,提高劳动生产(chan)率,降(jiang)低生产(chan)成本和(he)能耗。


4、结论


       石灰(hui)生产企业(ye)众多,但技术装(zhuang)备水平和(he)产品质(zhi)量参差(cha)不齐,节(jie)能减排意识日益增(zeng)强(qiang)。近(jin)年(nian)来(lai),1000t/d及(ji)以上大(da)(da)型回转(zhuan)窑以其产量、质(zhi)量、能耗、占地、投资、自动化控制、节(jie)能减排等(deng)优势(shi)迅速得到(dao)市场认(ren)可和(he)推广(guang),符合(he)大(da)(da)型节(jie)能冶(ye)金石灰(hui)工业(ye)的(de)发展(zhan)趋势(shi),具有广(guang)阔的(de)应(ying)用前景。我公司5x1000T/D回转(zhuan)窑项(xiang)目整合(he)了(le)(le)中国目前的(de)成熟技术,代表了(le)(le)石灰(hui)行业(ye)未(wei)来(lai)的(de)发展(zhan)方(fang)向(xiang)。该工艺(yi)将为(wei)全球活性石灰(hui)工业(ye)做(zuo)出重要贡献。


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