在廠(chang)區(qu)市(shi)內(nei)的(de)(de)(de)墻(qiang)面裝(zhuang)飾中，在雙層墻(qiang)的(de)(de)(de)空氣層中放置吸音(yin)綿(mian)，將進一步提(ti)(ti)高(gao)雙層墻(qiang)的(de)(de)(de)隔音(yin)量(liang)，并(bing)且(qie)吸音(yin)綿(mian)材(cai)料的(de)(de)(de)厚度愈(yu)大、吸音(yin)性(xing)(xing)能愈(yu)好(hao)，隔音(yin)量(liang)的(de)(de)(de)提(ti)(ti)高(gao)也(ye)就愈(yu)顯著，提(ti)(ti)升(sheng)處于廠(chang)區(qu)的(de)(de)(de)安靜(jing)舒適(shi)度。為滿足(zu)工業降噪的(de)(de)(de)綜合性(xing)(xing)要(yao)求，用于隔聲的(de)(de)(de)發(fa)泡(pao)材(cai)質要(yao)求有(you)密(mi)實無孔隙或縫隙，水泵(beng)降噪工程，阻(zu)尼性(xing)(xing)強、高(gao)彈性(xing)(xing)、耐水性(xing)(xing)、耐候(hou)性(xing)(xing)佳、耐油性(xing)(xing)、阻(zu)燃(ran)性(xing)(xing)好(hao)的(de)(de)(de)多功能結構特征。市(shi)面上有(you)聚氨酯/聚乙(yi)烯/樹脂/PVC/橡膠/陶瓷/聚酰/玻璃/水泥等致密(mi)結構的(de)(de)(de)閉孔發(fa)泡(pao)制品(pin)，組成的(de)(de)(de)如墻(qiang)體、氈板、鋼板、鉛板、磚塊等復(fu)合制品(pin)。

根(gen)據(ju)發電機(ji)噪(zao)(zao)聲(sheng)(sheng)的(de)(de)性(xing)質(zhi)，擬采取隔(ge)聲(sheng)(sheng)和(he)消聲(sheng)(sheng)相結合的(de)(de)技術(shu)方(fang)案(an)。一是(shi)隔(ge)聲(sheng)(sheng)，安(an)徽降噪(zao)(zao)工程，將發電機(ji)房(fang)(fang)通風(feng)口和(he)進(jin)出口密封(feng)，隔(ge)離(li)噪(zao)(zao)聲(sheng)(sheng)向外擴散。對發電機(ji)房(fang)(fang)與外界環(huan)境(jing)的(de)(de)換氣(qi)(qi)信(xin)道、排氣(qi)(qi)口的(de)(de)氣(qi)(qi)流(liu)進(jin)行(xing)消聲(sheng)(sheng)，噪(zao)(zao)聲(sheng)(sheng)衰減后，再排出室外，其原理是(shi)：機(ji)組的(de)(de)噪(zao)(zao)聲(sheng)(sheng)波入(ru)射到(dao)多(duo)孔、透氣(qi)(qi)的(de)(de)超(chao)細玻璃棉或軟(ruan)體式吸音(yin)海(hai)(hai)綿(mian)體中(zhong)時，聲(sheng)(sheng)波則(ze)會進(jin)入(ru)材料從而引起材料空隙中(zhong)的(de)(de)空氣(qi)(qi)和(he)纖維（海(hai)(hai)綿(mian)體）發生振(zhen)動，出于(yu)摩擦和(he)粘滯阻力以(yi)及纖維的(de)(de)導熱性(xing)能(neng)，降噪(zao)(zao)處理，大部分(fen)聲(sheng)(sheng)能(neng)轉化為熱能(neng)消耗掉(diao)。根(gen)據(ju)同功率(lv)發電機(ji)噪(zao)(zao)聲(sheng)(sheng)測(ce)試數據(ju)類比，發電機(ji)噪(zao)(zao)聲(sheng)(sheng)約為95dB（A）左右。為滿足環(huan)保要求，對發電機(ji)房(fang)(fang)采用(yong)以(yi)下(xia)綜合治理措(cuo)施。

風(feng)(feng)(feng)機是(shi)水(shui)泥(ni)廠大的(de)(de)(de)噪(zao)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)污(wu)染源之(zhi)一(yi)。尤(you)其(qi)(qi)是(shi)熟料(liao)篦式冷卻機風(feng)(feng)(feng)機和(he)窯尾排風(feng)(feng)(feng)機，其(qi)(qi)噪(zao)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)可高達100dB(A)以(yi)上。若能(neng)通過有(you)效(xiao)(xiao)措施減小風(feng)(feng)(feng)機的(de)(de)(de)噪(zao)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)，將(jiang)會為(wei)水(shui)泥(ni)廠噪(zao)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)污(wu)染治(zhi)理(li)工作帶(dai)來的(de)(de)(de)效(xiao)(xiao)果。在風(feng)(feng)(feng)機的(de)(de)(de)進出風(feng)(feng)(feng)管(guan)(guan)(guan)道處裝置消(xiao)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)器(qi)。將(jiang)礦渣棉(mian)、超細(xi)礦渣棉(mian)、玻璃絲(si)以(yi)及(ji)工業毛氈(zhan)等(deng)(deng)(deng)多孔消(xiao)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)材料(liao)放置在空(kong)氣(qi)流(liu)通的(de)(de)(de)管(guan)(guan)(guan)道內，并將(jiang)其(qi)(qi)緊貼在管(guan)(guan)(guan)道內側，以(yi)便(bian)更好的(de)(de)(de)吸收(shou)噪(zao)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)。根據噪(zao)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)的(de)(de)(de)頻(pin)率決(jue)定(ding)消(xiao)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)材料(liao)的(de)(de)(de)厚(hou)度(du)(du)。高頻(pin)噪(zao)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)應選用(yong)(yong)(yong)較厚(hou)的(de)(de)(de)消(xiao)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)材料(liao)。消(xiao)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)材料(liao)厚(hou)度(du)(du)小時對低頻(pin)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)的(de)(de)(de)吸收(shou)效(xiao)(xiao)果較好。根據消(xiao)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)量(liang)確(que)定(ding)消(xiao)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)器(qi)長(chang)度(du)(du)和(he)消(xiao)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)彎(wan)頭的(de)(de)(de)數量(liang)。消(xiao)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)器(qi)有(you)效(xiao)(xiao)長(chang)度(du)(du)長(chang)，采用(yong)(yong)(yong)消(xiao)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)彎(wan)頭時，消(xiao)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)效(xiao)(xiao)果好，但壓力損失大，較高的(de)(de)(de)氣(qi)流(liu)速度(du)(du)又(you)會產生新的(de)(de)(de)噪(zao)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)。風(feng)(feng)(feng)管(guan)(guan)(guan)用(yong)(yong)(yong)阻(zu)尼材料(liao)外包扎減少通風(feng)(feng)(feng)風(feng)(feng)(feng)管(guan)(guan)(guan)傳播噪(zao)音(yin)，空(kong)氣(qi)能(neng)設備降噪(zao)工程(cheng)，使用(yong)(yong)(yong)阻(zu)尼涂料(liao)粉刷風(feng)(feng)(feng)機、風(feng)(feng)(feng)管(guan)(guan)(guan)。增大增重風(feng)(feng)(feng)機、電機基(ji)礎(chu)及(ji)采用(yong)(yong)(yong)橡膠(jiao)隔(ge)振(zhen)(zhen)墊等(deng)(deng)(deng)隔(ge)振(zhen)(zhen)措施，也(ye)可用(yong)(yong)(yong)密封罩密封風(feng)(feng)(feng)機等(deng)(deng)(deng)。風(feng)(feng)(feng)機房屋(wu)采用(yong)(yong)(yong)吸聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)的(de)(de)(de)墻(qiang)體，如(ru)多孔混凝土砌塊、內貼吸聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)材料(liao)，或采用(yong)(yong)(yong)雙墻(qiang)隔(ge)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)墻(qiang)處理(li)等(deng)(deng)(deng)。