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一、产品概述
矿山原料破碎系统除尘设备对原(yuan)料(liao)(liao)矿、块矿以(yi)及(ji)石(shi)灰(hui)石(shi)、白云(yun)石(shi)、铝土(tu)、原(yuan)煤等(deng)原(yuan)料(liao)(liao)的破碎(sui)机(ji)或粉碎(sui)机(ji)的投料(liao)(liao)口﹑出料(liao)(liao)口、振动筛上部(bu)以(yi)及(ji)带(dai)式输送机(ji)转(zhuan)运(yun)点(dian)等(deng)部(bu)位(wei)设(she)密(mi)闭装置或集尘罩(zhao)，转(zhuan)运(yun)点(dian)受料(liao)(liao)处宜设(she)双层(ceng)密(mi)闭罩(zhao)。
二、工作原理
将除尘设备用密闭罩罩起来，或制作收尘小室，使罩内形成均匀负压，避免粉尘外逸，或用敞口吸气罩形成吸捕气流，将暴露的尘化区控制在狭小范围内，使携尘气流被吸捕抽走，通过除尘器净化后经排气筒(或烟(yan)囱)排入大气。
混匀(yun)配(pei)料(liao)(liao)槽(cao)(cao)的(de)槽(cao)(cao)上卸料(liao)(liao)车和槽(cao)(cao)下(xia)定(ding)量给料(liao)(liao)工位应采取除(chu)尘(chen)(chen)措施。槽(cao)(cao)上卸料(liao)(liao)车产生(sheng)的(de)粉尘(chen)(chen)可采用移动风(feng)口通风(feng)槽(cao)(cao)或车载(zai)式(shi)除(chu)尘(chen)(chen)器，或设(she)大容积(ji)密(mi)闭(bi)罩。对槽(cao)(cao)下(xia)定(ding)量卸料(liao)(liao)装置产生(sheng)的(de)粉尘(chen)(chen)宜(yi)设(she)双层密(mi)闭(bi)罩。对混匀(yun)配(pei)料(liao)(liao)槽(cao)(cao)扬尘(chen)(chen)，宜(yi)设(she)独立的(de)干(gan)式(shi)除(chu)尘(chen)(chen)系统，采用袋(dai)式(shi)除(chu)尘(chen)(chen)。
原煤破碎输送除尘系统应采取防爆措施。除尘器选用袋式除尘器，滤料(liao)应具(ju)有防静电(dian)(dian)功能；系统和设(she)备应静电(dian)(dian)接地，并设(she)泄爆装置(zhi)。灰斗宜采取保(bao)温(wen)或伴(ban)热措施。
原(yuan)料(liao)堆场的抽(chou)风(feng)除(chu)(chu)尘(chen)(chen)(chen)(chen)系(xi)(xi)(xi)统(tong)(tong)包括矿石(shi)破碎(sui)、筛(shai)分除(chu)(chu)尘(chen)(chen)(chen)(chen)系(xi)(xi)(xi)统(tong)(tong)，石(shi)灰(hui)石(shi)破碎(sui)、筛(shai)分除(chu)(chu)尘(chen)(chen)(chen)(chen)系(xi)(xi)(xi)统(tong)(tong)，铝矿石(shi)破碎(sui)除(chu)(chu)尘(chen)(chen)(chen)(chen)系(xi)(xi)(xi)统(tong)(tong)，以(yi)及(ji)煤(mei)破碎(sui)除(chu)(chu)尘(chen)(chen)(chen)(chen)系(xi)(xi)(xi)统(tong)(tong)等。对于(yu)产(chan)尘(chen)(chen)(chen)(chen)设备(bei)集中(zhong)、粉尘(chen)(chen)(chen)(chen)性质相同(tong)和工(gong)作制度相同(tong)的产(chan)尘(chen)(chen)(chen)(chen)点，尽量采(cai)用(yong)大的集中(zhong)除(chu)(chu)尘(chen)(chen)(chen)(chen)系(xi)(xi)(xi)统(tong)(tong)，便于(yu)管理，如(ru)石(shi)灰(hui)石(shi)破碎(sui)、筛(shai)分除(chu)(chu)尘(chen)(chen)(chen)(chen)系(xi)(xi)(xi)统(tong)(tong)多(duo)达几(ji)十个(ge)产(chan)尘(chen)(chen)(chen)(chen)点集中(zhong)在一(yi)个(ge)大系(xi)(xi)(xi)统(tong)(tong)中(zhong)。否则可以(yi)采(cai)用(yong)小型的分散系(xi)(xi)(xi)统(tong)(tong)。各种除(chu)(chu)尘(chen)(chen)(chen)(chen)系(xi)(xi)(xi)统(tong)(tong)中(zhong)多(duo)采(cai)用(yong)干式袋(dai)式除(chu)(chu)尘(chen)(chen)(chen)(chen)器。
