對于空(kong)氣脈動(dong)跳(tiao)汰洗煤(mei)機，風(feng)、水配合的(de)共同作用直接影響跳(tiao)汰周期及床(chuang)層的(de)松散狀況，所(suo)以(yi)應根據(ju)所(suo)要求的(de)床(chuang)層松散度(du)調節(jie)風(feng)量，跳(tiao)液壓室段(duan)的(de)風(feng)量比第二段(duan)的(de)大，各(ge)(ge)段(duan)各(ge)(ge)分室的(de)風(feng)量自(zi)入料到溢流堰依次減(jian)少，但有時為(wei)了加強(qiang)第二段(duan)中(zhong)煤(mei)中(zhong)間分室的(de)吸啜作用，強(qiang)化細粒矸石的(de)透篩過程(cheng)，相比其他各(ge)(ge)分室，用風(feng)量可適(shi)當的(de)加大。
給(gei)入跳汰洗煤機(ji)的水來自兩個方面，一是隨物料一起給(gei)入的水，二是從篩下(xia)連(lian)續可間斷(duan)補加的篩下(xia)水，這兩部分水對(dui)于(yu)空氣脈動跳汰洗煤機(ji)機(ji)，后都是通(tong)過溢流堰(yan)隨輕產物排出。
洗煤機設備給(gei)礦水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)主要(yao)是用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)來預先潤濕(shi)煤炭或礦石便于(yu)(yu)均(jun)勻而(er)(er)又連續的(de)(de)(de)(de)給(gei)料(liao)，該(gai)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)量(liang)一(yi)(yi)般不宜過大(da)，其用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)量(liang)以(yi)能(neng)將給(gei)料(liao)口(kou)的(de)(de)(de)(de)原料(liao)全(quan)總潤濕(shi)為限(xian)，對(dui)于(yu)(yu)煤用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)跳(tiao)汰(tai)機，沖水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)量(liang)約(yue)占水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)量(liang)的(de)(de)(de)(de)20%到30%，對(dui)于(yu)(yu)礦用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)跳(tiao)汰(tai)機，給(gei)礦水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)按濃度計(ji)算(suan)一(yi)(yi)般不超過20%-25%。篩下(xia)(xia)(xia)(xia)(xia)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)對(dui)于(yu)(yu)空(kong)(kong)氣脈(mo)動(dong)(dong)跳(tiao)汰(tai)機，其作(zuo)(zuo)(zuo)(zuo)(zuo)(zuo)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)主要(yao)是補(bu)充篩下(xia)(xia)(xia)(xia)(xia)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)量(liang)的(de)(de)(de)(de)短缺，減(jian)(jian)小(xiao)跳(tiao)汰(tai)室(shi)和(he)空(kong)(kong)氣室(shi)之(zhi)間在(zai)工作(zuo)(zuo)(zuo)(zuo)(zuo)(zuo)是液(ye)位差，從而(er)(er)增(zeng)加(jia)了(le)空(kong)(kong)氣室(shi)內(nei)(nei)壓縮(suo)的(de)(de)(de)(de)有(you)效壓力(li)(li)，篩下(xia)(xia)(xia)(xia)(xia)頂(ding)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)所形成(cheng)的(de)(de)(de)(de)上(shang)升流(liu)速(su)(su)很(hen)小(xiao)，約(yue)在(zai)0.5-1.scm/的(de)(de)(de)(de)范圍內(nei)(nei)，不會明顯(xian)地改變脈(mo)動(dong)(dong)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)流(liu)上(shang)升和(he)下(xia)(xia)(xia)(xia)(xia)降(jiang)的(de)(de)(de)(de)流(liu)速(su)(su)，但(dan)由于(yu)(yu)它減(jian)(jian)小(xiao)了(le)跳(tiao)汰(tai)室(shi)的(de)(de)(de)(de)空(kong)(kong)氣室(shi)之(zhi)間的(de)(de)(de)(de)液(ye)位差，增(zeng)大(da)了(le)壓縮(suo)空(kong)(kong)氣的(de)(de)(de)(de)壓力(li)(li)效應，故使(shi)脈(mo)動(dong)(dong)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)流(liu)上(shang)升時提早開(kai)始(shi)，下(xia)(xia)(xia)(xia)(xia)降(jiang)時提前結束，因而(er)(er)加(jia)大(da)了(le)上(shang)升水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)流(liu)的(de)(de)(de)(de)作(zuo)(zuo)(zuo)(zuo)(zuo)(zuo)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)，減(jian)(jian)弱下(xia)(xia)(xia)(xia)(xia)下(xia)(xia)(xia)(xia)(xia)降(jiang)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)流(liu)的(de)(de)(de)(de)作(zuo)(zuo)(zuo)(zuo)(zuo)(zuo)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)，加(jia)大(da)篩下(xia)(xia)(xia)(xia)(xia)預水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)的(de)(de)(de)(de)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)量(liang)，提高床層(ceng)松散度，減(jian)(jian)弱吸啜(chuo)作(zuo)(zuo)(zuo)(zuo)(zuo)(zuo)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)和(he)細粒物料(liao)的(de)(de)(de)(de)透(tou)篩，空(kong)(kong)氣脈(mo)動(dong)(dong)跳(tiao)汰(tai)洗煤機的(de)(de)(de)(de)分(fen)選用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)均(jun)循環(huan)使(shi)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)，其損(sun)失量(liang)應由清水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)補(bu)加(jia)，在(zai)篩下(xia)(xia)(xia)(xia)(xia)頂(ding)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)量(liang)的(de)(de)(de)(de)分(fen)配上(shang)，段(duan)矸石段(duan)比第二段(duan)中(zhong)煤段(duan)為各(ge)段(duan)的(de)(de)(de)(de)各(ge)分(fen)室(shi)通常也是由給(gei)料(liao)端到輕產物流(liu)依次減(jian)(jian)少，選煤用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)空(kong)(kong)氣脈(mo)動(dong)(dong)跳(tiao)汰(tai)機操作(zuo)(zuo)(zuo)(zuo)(zuo)(zuo)時，風量(liang)和(he)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)量(liang)的(de)(de)(de)(de)正確配合使(shi)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)，對(dui)分(fen)選工藝指的(de)(de)(de)(de)好(hao)壞為重要(yao)，雖然在(zai)一(yi)(yi)定范圍內(nei)(nei)，加(jia)大(da)風量(liang)和(he)增(zeng)加(jia)頂(ding)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)都能(neng)使(shi)床層(ceng)的(de)(de)(de)(de)松散度提高，但(dan)風量(liang)加(jia)大(da)能(neng)強(qiang)化下(xia)(xia)(xia)(xia)(xia)降(jiang)期吸啜(chuo)作(zuo)(zuo)(zuo)(zuo)(zuo)(zuo)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)，而(er)(er)加(jia)大(da)頂(ding)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)使(shi)吸啜(chuo)作(zuo)(zuo)(zuo)(zuo)(zuo)(zuo)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)減(jian)(jian)弱，因此，在(zai)實際跳(tiao)汰(tai)洗煤機操作(zuo)(zuo)(zuo)(zuo)(zuo)(zuo)中(zhong)只(zhi)能(neng)根據工作(zuo)(zuo)(zuo)(zuo)(zuo)(zuo)經驗和(he)具體操作(zuo)(zuo)(zuo)(zuo)(zuo)(zuo)情況靈活運用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)，有(you)人認為：寧多用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)風，不多用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)不，這(zhe)是由于(yu)(yu)加(jia)大(da)項不可(ke)以(yi)減(jian)(jian)少精煤在(zai)矸石中(zhong)的(de)(de)(de)(de)損(sun)失，但(dan)頂(ding)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)過大(da)給(gei)全(quan)廠煤泥(ni)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)系統(tong)造成(cheng)沉重負擔(dan)，使(shi)煤泥(ni)在(zai)廠內(nei)(nei)回收的(de)(de)(de)(de)工作(zuo)(zuo)(zuo)(zuo)(zuo)(zuo)加(jia)重。
