怎么調節網帶輸送機的皮帶速度？
時間:2020-10-15
來源:網帶輸送機
瀏覽次數:1690
網帶(dai)輸(shu)送(song)(song)機作為礦(kuang)井的(de)主要運(yun)輸(shu)設備，其能耗對煤礦(kuang)等企業的(de)運(yun)輸(shu)成本有著(zhu)明顯的(de)影響。如果(guo)采用(yong)工(gong)頻(pin)恒速運(yun)行(xing)方式，則(ze)會出(chu)現以(yi)下問題：如果(guo)網帶(dai)輸(shu)送(song)(song)機空載(zai)或(huo)輕負荷造(zao)成電能浪費，則(ze)機械與傳送(song)(song)帶(dai)之間(jian)的(de)摩(mo)擦系(xi)數較大。
為了提高網(wang)(wang)帶(dai)(dai)(dai)(dai)輸(shu)(shu)送(song)機(ji)(ji)的(de)運(yun)(yun)輸(shu)(shu)效率，降低能耗，有必要采取措施調整(zheng)網(wang)(wang)帶(dai)(dai)(dai)(dai)輸(shu)(shu)送(song)機(ji)(ji)的(de)皮帶(dai)(dai)(dai)(dai)速(su)度。當(dang)網(wang)(wang)帶(dai)(dai)(dai)(dai)輸(shu)(shu)送(song)機(ji)(ji)負載發(fa)生(sheng)變(bian)化時，根(gen)據載荷及(ji)時調整(zheng)皮帶(dai)(dai)(dai)(dai)速(su)度，以達到節能運(yun)(yun)行和延長壽命(ming)的(de)目的(de)。傳送(song)帶(dai)(dai)(dai)(dai)由電機(ji)(ji)驅動(dong)，傳送(song)帶(dai)(dai)(dai)(dai)、滾筒(tong)等在運(yun)(yun)行過程(cheng)中(zhong)會產(chan)生(sheng)阻(zu)力(li)(li)。通常情況(kuang)下，網(wang)(wang)帶(dai)(dai)(dai)(dai)輸(shu)(shu)送(song)機(ji)(ji)的(de)阻(zu)力(li)(li)主要有：輸(shu)(shu)送(song)帶(dai)(dai)(dai)(dai)在滾筒(tong)上的(de)摩擦阻(zu)力(li)(li)、物(wu)料的(de)擠壓阻(zu)力(li)(li)、托輥的(de)運(yun)(yun)轉阻(zu)力(li)(li)、輸(shu)(shu)送(song)帶(dai)(dai)(dai)(dai)的(de)彎(wan)曲擺(bai)動(dong)阻(zu)力(li)(li)等。
對于特定(ding)的(de)(de)(de)(de)網(wang)帶(dai)(dai)輸(shu)(shu)(shu)(shu)(shu)(shu)(shu)送(song)(song)(song)機，影(ying)(ying)響網(wang)帶(dai)(dai)輸(shu)(shu)(shu)(shu)(shu)(shu)(shu)送(song)(song)(song)機功率的(de)(de)(de)(de)主要因素是運輸(shu)(shu)(shu)(shu)(shu)(shu)(shu)量和皮(pi)帶(dai)(dai)速(su)(su)度(du)(du)(du)。當運輸(shu)(shu)(shu)(shu)(shu)(shu)(shu)量q為常數時，傳(chuan)送(song)(song)(song)帶(dai)(dai)功率P與皮(pi)帶(dai)(dai)速(su)(su)度(du)(du)(du)V成(cheng)正(zheng)比(bi)。同樣(yang)，如果(guo)輸(shu)(shu)(shu)(shu)(shu)(shu)(shu)送(song)(song)(song)帶(dai)(dai)v增(zeng)大(da)(da)，克服阻力(li)所(suo)消耗(hao)的(de)(de)(de)(de)功率也相應增(zeng)加。因此(ci)，通過降低(di)(di)(di)網(wang)帶(dai)(dai)輸(shu)(shu)(shu)(shu)(shu)(shu)(shu)送(song)(song)(song)機的(de)(de)(de)(de)速(su)(su)度(du)(du)(du)v，可(ke)(ke)以降低(di)(di)(di)網(wang)帶(dai)(dai)輸(shu)(shu)(shu)(shu)(shu)(shu)(shu)送(song)(song)(song)機的(de)(de)(de)(de)能(neng)(neng)耗(hao)，達到(dao)節能(neng)(neng)的(de)(de)(de)(de)目的(de)(de)(de)(de)。網(wang)帶(dai)(dai)輸(shu)(shu)(shu)(shu)(shu)(shu)(shu)送(song)(song)(song)機的(de)(de)(de)(de)輸(shu)(shu)(shu)(shu)(shu)(shu)(shu)送(song)(song)(song)量與生產地質(zhi)條件(jian)和工藝設備有關，具(ju)有很大(da)(da)的(de)(de)(de)(de)不確定(ding)性，因此(ci)通過研(yan)究網(wang)帶(dai)(dai)輸(shu)(shu)(shu)(shu)(shu)(shu)(shu)送(song)(song)(song)機的(de)(de)(de)(de)速(su)(su)度(du)(du)(du)與充(chong)填率的(de)(de)(de)(de)關系，可(ke)(ke)以降低(di)(di)(di)網(wang)帶(dai)(dai)輸(shu)(shu)(shu)(shu)(shu)(shu)(shu)送(song)(song)(song)機的(de)(de)(de)(de)能(neng)(neng)耗(hao)。在(zai)一(yi)定(ding)的(de)(de)(de)(de)輸(shu)(shu)(shu)(shu)(shu)(shu)(shu)送(song)(song)(song)量條件(jian)下(xia)，輸(shu)(shu)(shu)(shu)(shu)(shu)(shu)送(song)(song)(song)帶(dai)(dai)速(su)(su)度(du)(du)(du)越(yue)低(di)(di)(di)，物料(liao)的(de)(de)(de)(de)充(chong)填率越(yue)高。因此(ci)，可(ke)(ke)以通過降低(di)(di)(di)皮(pi)帶(dai)(dai)速(su)(su)度(du)(du)(du)來提高材(cai)料(liao)的(de)(de)(de)(de)填充(chong)率，從而達到(dao)節能(neng)(neng)的(de)(de)(de)(de)目的(de)(de)(de)(de)。當運輸(shu)(shu)(shu)(shu)(shu)(shu)(shu)能(neng)(neng)力(li)下(xia)降時，如果(guo)速(su)(su)度(du)(du)(du)不改變(bian)，能(neng)(neng)耗(hao)就會增(zeng)加，所(suo)以當輸(shu)(shu)(shu)(shu)(shu)(shu)(shu)送(song)(song)(song)帶(dai)(dai)運輸(shu)(shu)(shu)(shu)(shu)(shu)(shu)能(neng)(neng)力(li)較小時，可(ke)(ke)根據設計(ji)的(de)(de)(de)(de)選擇輸(shu)(shu)(shu)(shu)(shu)(shu)(shu)送(song)(song)(song)帶(dai)(dai)速(su)(su)度(du)(du)(du)。網(wang)帶(dai)(dai)輸(shu)(shu)(shu)(shu)(shu)(shu)(shu)送(song)(song)(song)機作為礦井(jing)的(de)(de)(de)(de)主要運輸(shu)(shu)(shu)(shu)(shu)(shu)(shu)設備，其(qi)能(neng)(neng)耗(hao)對煤礦等企業的(de)(de)(de)(de)運輸(shu)(shu)(shu)(shu)(shu)(shu)(shu)成(cheng)本(ben)有著(zhu)明顯的(de)(de)(de)(de)影(ying)(ying)響。如果(guo)采用工頻恒(heng)速(su)(su)運行(xing)方式(shi)，會出現以下(xia)問題：如果(guo)網(wang)帶(dai)(dai)輸(shu)(shu)(shu)(shu)(shu)(shu)(shu)送(song)(song)(song)機空(kong)載或輕負荷會造成(cheng)電能(neng)(neng)浪費，則機械與傳(chuan)送(song)(song)(song)帶(dai)(dai)之(zhi)間(jian)的(de)(de)(de)(de)摩擦系數較大(da)(da)。
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