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根據(jù)試驗(yàn)現(xiàn)場觀測和試驗(yàn)技術(shù)數(shù)據(jù)分析：主機(jī)轉(zhuǎn)速為6（r/min）和10（r/min）時(shí)，煤泥在LHG型干燥機(jī)內(nèi)通過時(shí)間長，水分低，產(chǎn)量小，干燥機(jī)下料口因水分太低而有少量粉塵飄揚(yáng)；主機(jī)轉(zhuǎn)速為15（r/min）和20（r/min）時(shí)，煤泥在LHG型干燥機(jī)通過時(shí)間短，產(chǎn)量大，水分高，隨著水分地提高，干燥機(jī)下料口有較多明顯可見白色水汽出現(xiàn)，不再有粉塵飛揚(yáng)的現(xiàn)象。縱觀整個試驗(yàn)過程，無論產(chǎn)量大小、水分高低，煤泥在LHG型干燥機(jī)內(nèi)均運(yùn)行流暢，不粘連、不堵塞，設(shè)備運(yùn)行始終平穩(wěn)。值得注意的是，試驗(yàn)時(shí)因時(shí)間所限，采用了實(shí)時(shí)取樣方式，實(shí)際生產(chǎn)時(shí)如間隔一定時(shí)間取樣，由于煤泥較高殘余熱量（約100℃）的烘焙，還要蒸發(fā)部分水分，因此實(shí)際水分應(yīng)比試驗(yàn)所測水分還要低1%～2%。主機(jī)轉(zhuǎn)速為20（r/min）時(shí)，實(shí)測水分為7%，產(chǎn)量為225kg/min。也就是說如產(chǎn)品水分要求為15%時(shí)，只要調(diào)整一下主機(jī)轉(zhuǎn)速，產(chǎn)量還可增加一倍。 上一頁 [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15] [16] [17] [18] [19] [20] [21] [22] [23] [24] [25] [26] [27] [28] [29] [30] [31] [32] [33] [34] [35] [36] [37] [38] [39] [40] [41] [42] [43] [44] [45] [46] [47] [48] [49] [50] [51] [52] [53] [54] [55] [56] [57] [58] [59] [60] [61] [62] [63] [64] [65] [66] [67] [68] [69] [70] [71] [72] [73] [74] [75] [76] [77] [78] [79] [80] [81] [82] [83] [84] [85] [86] [87] [88] [89] [90] [91] [92] [93] [94] [95] [96] [97] [98] [99] [100] [101] [102] [103] [104] [105] [106] [107] [108] [109] [110] [111] [112] [113] [114] [115] [116] [117] [118] [119] [120] [121] [122] [123] [124] [125] [126] [127] [128] [129] [130] [131] [132] [133] [134] [135] [136] [137] [138] [139] [140] [141] [142] [143] [144] [145] [146] [147] [148] [149] [150] [151] [152] [153] [154] [155] 下一頁 |
