工藝流程計算

1、頂先1篩分59介質水60動篩4幵不12? H沆尹2131124D介跡19204 3產(chǎn)匕M54 73cf -46中戲23r 3741可石1G26?5627I48礦漿準備需和選49IJ1尾戲I M53尾貂565750 = A&J過濾jj浮選制駁XX循環(huán)水58圖3-2150萬噸選煤廠工藝流程圖第4章工藝流程的計算4.1介質流程的計算選煤廠旋流器小時入料量為 =275.227(/“)，要求分選比重=1.40( )原煤水分=5.0%加重劑中磁性物比重5, =5.0(g/cn?)4. 1. 1給料中煤泥水的計算：取煤泥比重戈=15(g / cm3) £ = 100%rm =+ r, +

2、$=9.96 + 4.00 + 7.00 = 20.96%給料中煤泥量：G”=59.545(/7)非磁性物的含量：G(.=G= 59.545(/?)W5原煤泥水量為：也=0、=一-一x275.227 = 14.486(亦/力) ”100-V, S 100-5煤泥水的體積：人=叱+字= 14.486 +竺仝= 54.183 (心d(1.5屮、口 d+ Wn 59.545 + 14.486 3、煤泥水的密度：” = 1.366 (t/nr)Vn54.183煤泥水單位體積的固體含量：g”=% =聖空 = 1.099 (t/m3)n Vn 54.1834. 1. 2補加濃介質的性質的計算：設濃介質比重

3、Ax =2.0 =5.0 Jr = 1.5濃介質中非磁性物的含量 =5%磁性物含量r,. =95%濃介質懸浮液的密度：西= 4.478 ( “F)A J, -r.x5x5%+1.5x95%補加介質中干介質質量兄=4 =上注=0.2875西 一 14.478 一 1濃介質懸浮液的固體含量：gx ="x =0.2875x4.478 = 1.288 (t/m3)濃介質懸浮液的煤泥含量：gcX =gx =1.288x5% = 0.064（/n3）濃介質懸浮液的磁性物含量：gx =gx-gfX =1288-0064 = 1224（加）單位體積含水量：3x = Axgx =2.o-1.288 =

4、 o.712(z/n3)4. 1. 3確定工作介質的性質:要求分選比重：=l40（g/cM）取工作介質懸浮液的比重：A7 = - A = 1.40 - 0.12 = 1.28（/ /）查舊手冊值在0.120.18之間則工作介質中非磁性物含量最高極限值：max=G 幾（、一）十£匕：1（亠一亠）x 100%Gx 一J + gxFd -亠)59.545 x 100% x (2.0 一 1.28) +1.288 x 5483x5%x(1.28 一 1.366), “=x 100%59.545 x (2.0 一 1.28) +1.288 x 54.183x(1.28 一 1.366)= 11

5、5.47%取工作介質中非磁性物含量：rcl = 40%<5x1.5則工作介質中磁性物含量：rr7 =100-=60%6 = 2.586 (/ / "F)J. r,7 + Q 心75x40% + 1.5x60%2.586-1介質中干介質的質量：g嚴皆叫識學卅6 =0.457 （門毎一1其中非磁性物含量：g“=g7G= 0.457x40% = 0.183 (f/F)磁性物含量：£門=心 一&7= 0 457-0.183 = 0.274 (/")單位體積含水量：= A7 - = 1.28-0.457 = 0.823 (“F)4. 1. 4分選作業(yè)計算：確定

6、循環(huán)介質量：選3GDMC1000/700三產(chǎn)品重介旋流器，得:KQ；q1.25x275.227220=156冶)單臺旋流器循環(huán)量為：V=600(F/2)總循環(huán)量：叫= 1200 (m3/h)工作介質總量:嶺=%+匕=1200 + 54.183 = 1254.183 (my/h)G? =g? 嶺=0.457x1254.183 = 573.162 (t/h)Gcl = G7 /;.7 =573 162x40% = 229.265 (t/h)Gfl =G7-Gc1 = 573.162-229.265 = 343.897 (t/h)% =馬.嶺=0.823x 1254.183 = 1032.193lh

7、)求循環(huán)介質其它參數(shù)：G8=G7-Gh =573.162-59.545 = 513.617 (t/h)08 = GC1 -G” = 229.265-59.545 = 169.720 (t/h)Gfs = -G,8 = 513.617-169.720 = 343.897 (t/h)也=% _ % = 1032.193 -14.486 = 1017.707 (m3 /).Gg+I% 513.617 + 1017.797 一” “ zrs= 1.276 (Kg/L)* 匕12006廠=乞 x 100% = 169,720 x 100% = 33.044%"G$513.617r/8 = 10

8、0 - 忌=100 - 33.044 = 66.956%旋流器一段分選作業(yè)計算：設一段旋流器溢流中的懸浮液密度比工作介質低0. 1,底流比工作介質高0.4,即：A9 =A7-0.1 = 1.28-0.1 = 1.18 (/Tg/L)A._. =A7+0.4 = 1.28 + 0.4= 1.68 (Kg/厶)% =亠7 匕=x 1254.183 = 250.837 (m3 / h)R 底-亠1.68 -18% = %_V媒=1254.183-250.837 = 1003.346 (m3/i)設底流中磁性物含量比工作介質高10%：仏=rfl + 10% = 60%+ 10% = 70%町七=100

9、 慎=100 70 = 30%(底_ 1)5底 _(l68_l)x2941% _ 12.941-1 "底=gj« =1-030x 30% = 0.309 (r / F)g/底=g 底一 &底=1 030- 0.309 = 0.721 (/ /)；：=A(l,-K= 1.68-1.030 = 0.650 ( w3)= &底 = 1.030x250.837 = 258.362 (t/h)G(Ii< = Gh. 仏=258.362x30% = 77.509 (t/h)G .l; =Gl;-G<lt =258.362-77.509=180.853 (t/

10、h)1% = %. 匕=0.6650 x 250.837 = 163.044 (m3 Hi)G9 = G? -G底=573.162-258.362 = 314.800 (t/h)Ge9 = Gc7 -G鳳=229.265一77.509 = 151.756 (t/h)Ge =G9-Gc9 =314.800-151.756 = 163.044 (t/h) w3 = IV. - VV(i. = 1032.193 -163.044 = 869.149 (m3 / h)3148()() =0.314 (加3)1003.346LI?" =0.151(加 3)1003.346gf9 = g9-gc

11、9 =0.314-0.151 = 0.163 (t/in3)%-869,149 -0.866 (t/m3)1003.346A9 = g9 + co)= 0.314 + 0.866 = 1.180 (t /m )9與假定值相同，說明以上計算無誤。=lrxl00%=SSxl00%=48-21%S=100 _9 = 1°0-48.21=51.79%旋流器二段分選作業(yè)計算：設二段旋流器溢流中的懸浮液密度比工作介質低0. 1,底流比工作介質高0.4, BJ： A10 = A. -0.1 = 1.68-0.1 = 1.58/L)An = A；l< +0.4 = 1.68 + 0.4 = 2

12、.08 (Kg/L)土二辿% = L68L>8X250.837 = 50.167 (m3/h)11 An-A10 吹 2.08-1.58Vlo =比一 Vu=250.837 - 50.167 = 200.670 (m3 /h)設底流中磁性物含量比工作介質高10%：rflI =仏 + 10% = 70% + 10% = 80%匕=100 -=100 - 80 = 20%5x20% + 1.5x80% _3 409/m)(A11-l) <511 _ (2.08 - 1)x3.409%_13.409-1g( 11 = gii /】1 = 1 528 x 20% = 0.306 (/ /

13、nr )/ii =<?n-<?cii =1-528-0.306 = 1.222 (t/m3)= 2.08 一 1.528 = 0.552 (/ nr )Gn = gv 匕=1.528x50.167 = 76.665 (r/?)Grll =Gn-/;.H = 76.665x20% = 15.333 (t/h)G門| =久一陥=76.665-15.333 = 61.332 (/?)Wn = Vn = 0.552x50.167 = 27.692 (m3/?)G10 = G,-Gn = 258.362-76.665 = 181.697 (t/h)Grl0 = G 氐 一Gcll= 77.5

14、09-15.333 = 62.176 (t/h)G/I() = G10-Gcl0 = 181.697-62.176 = 119.521 (t/h)WlQ =妙底一略=163.044 27.692 = 135.352 (m3 / h).Go _181.697200.670 62.176$200.670= 10_g0.9C135.352 $200.670= 0.310 (r/zn3)0.905 (t/m3)£100.675 (t/m3)=0.595 (t/m3)i()= g()+ % =0.905 + 0.675 = 1.58 (/?、)、。與假定值相同，說明以上計算無誤。r10=-x

15、100% = 62176 x 100% = 34.22%G10181.697rf lo = lOO-/;1() = lOO-34.22 = 65.78%ru=-x 100% =xl00% = 20.00%f11 Gn7.665rni =100-rn =100-20.00 = 80.00%4.1.5精煤脫介作業(yè)的計算：取弧形篩脫出的介質占入料量的85%,求弧形篩篩下合格介質的各項參數(shù):Vl2 =匕 x85% = 1003.346x85% = 852.844 (m3/h)G12 =9 V12 =0.314x852.844 = 267.793 (t/h)GcI2 = gQ匕2 = 0 151X852

16、.844 = 128.779 (till)G/12=GI2-Gcn = 267.793 -128.779 = 139.014 (t/h) 陽2 =% % = °866x 852.844 = 738.563 (m3/h)進入脫介篩的懸浮液的各項參數(shù)：Vl3=v9-Vn = 1003.346-852.844= 150.502 (m3/h)&3 = G9-GI2 =314.800一267.793 = 47.007 (t/h)GcX3 = G(9 一 Grl2 =151.756 一 128.779 = 22.977 (/ /?)G，13 = Gl3 - GcX3 = 47.007 -

17、 22.977 = 24.030 (r/?)州3 = % 一w2 = 869.149一738.563 = 130.586 (m3 !h)脫介篩噴水量為1. 5 nf ItIV21 =V2I =1.50信=15><121.108 = 181.662 F/)Oo取末精煤帶走的磁性介質量為M二0. 50 Kg/f ,塊精煤帶走的磁性介質量為 = x=xl21.108x63.40% = 0.0384(Z/A)Grl9 = GI9 一G門9 = 0.0741-0.0384 = 0.0357 (t/h)取山末精煤帶走的水分為憐9 = 16%，塊精煤帶走的水分W加=8%吩歳;鳥滬船T皿x63.4

18、0%+625 （心）C195.0% =叫 + 如 + 如=14.625 += 14.656 (“F /力)J 01.5% =% =3.767 (nr/h)因此精煤脫介篩篩下稀介質量為：= Vjj + VI3 - V；8 - V19 = 181.662+150.502 -14.656 - 3.767 = 313.74 l(/n3 / h)G20 = G13 -G19 = 47.007-0.0741 = 46.9329 (t/h)G,.2O = G小一G門9 = 24.030-0.0384 = 23.9916 (t/h)G.2O = G2O-G,.2O= 46.9329-23.9916 = 22.

19、9413 (r/?)% =略 + 叫3 一叫8-W19 = 181.662 +130.586-14.625-3.767 = 293.856(" /7)4. 1. 6中煤脫介作業(yè)的計算：取弧形篩脫出的介質占入料量的85%,求弧形篩篩下合格介質的各項參數(shù):Vi4 =V；ox 85% = 200.670 x 85% = 170.5695 (m3/h)G14 = 10-V14 = 0.905 x 170.5695 = 154.3654 (r/z)Gcl4 = geo V；4 =0.310x170.5695 = 52.8765 (h)G門4 = G10 - G14 = 154.3654 一 5

20、2.8765 = 101.4889 t /h)Wl4 = Vi4 = 0.675x 170.5695 = 115.1344 (m3 /h)進入脫介篩的懸浮液的各項參數(shù)：Vl5 =V10-l/4 =200.670-170.5695 = 30.1005 (F/?)G15 = G1() - G14 = 181.697 -154.3654 = 27.3316 (t/h)Gtl5 = Gcl0 -G(14 = 62.176一52.8765 = 9.2995 (t/h)G.15 =G15-Gfl5 =27.3316-9.2995 = 18.0321 (t/h)Wl5 =Wi0-Wl4 = 135.352-

21、115.1344 = 20.2176 (m3/?)脫介篩噴水量為1.5 “F/f%4 =V24=1.5 ©=1.5X 55.227 = 82.8405 (m3 /?)取末中煤帶走的磁性介質量為M二0.50 Kg，塊中煤帶走的磁性介質量為x0-x55.227x63.40% = 0.0175 (t/h)f221000 川 1000G“ = 0.0266 (t/h)rno 0.657822 =<22-22 =0.0266-0.0175 = 0.0091 (t/h)取111末中煤帶走的水分為末中=16% ,塊中煤帶走的水分塊中=8%"塊中=閃抉中=1 *7577 (nr /h

22、)W22 =林中 + W塊中=6.6693 +1.7577 = 8.4270 (m3 lh)V22 =你中 + V塊中=6.6789 +1.7577 = 8.4366 (m3 /?)因此中煤脫介篩篩下稀介質量為：V23 =V24 +%_嶺2 =82.8405+ 30.1005 -&4366 = 104.5044 (m3 / h)G23=G15-G22 = 27.3316-0.0266 = 27.3050 (t/h)G/23 = G小-Gf22 =18.0321-0.0091 = 18.0146 (t/h)Gc25 = G23-G/23 = 27.3050-18.0146 = 9.290

23、4 (t/h)% = w24 + WS -W22 = 82.8405 + 20.2176-8.4270 = 94.6311 (m3 lh)4. 1. 7殲石脫介作業(yè)的計算：取弧形篩脫出的介質占入料量的85%,求弧形篩篩下合格介質的各項參數(shù):% =Vux85% = 50.167x85% = 42.6420 (m3 /i)Gl6 = g" V16 = 1.528x42.6420 = 65.1570 (t/?)G.16 = gcn -V16 = 0.306x42.6420 = 13.0484 (t/h)G,.16 = G16 -G,16 =65.1570-13.0484 = 52.1086

24、 (t/h)Wg =卩匕=0552X42.6420 = 23.5384 (F/“) 進入脫介篩的懸浮液的各項參數(shù)：V17 =Vu-l/6= 50.167 一42.6420 = 7.5250 (m3 /h)GI7 =Gn -G16 =76.665-65.157 = 11.5080 (r/7)G.17 =q“ Gm = 15.333 13.0484 = 2.2846 (/?)G/17 =G17-Grl7 =11.5080-2.2846 = 9.2234 (/?)VV17 = l你一叱6 =27.692 23.5384 = 4536 (w3/?)脫介篩噴水量為15 m3/tW21 =嶺了 = 1.5

25、 Qm =1 5 x 39.3465 = 59.0198 (F /?)取肝石帶走的磁性介質量為M二0. 30 Kg/fGb旦xQ肝石一 1000 11x39.3465 = 0.0H8(r/0疇*8(心)Gc25 =G25-Gf25 =0.0148-0.0118 = 0.0030 (t/h)取曲肝石帶走的水分為%25 = 6%W” =%"©= L-X 39.3465 = 2.5115 (“F / 力)100-%25 切"1006IIZ Gc25 G "0.0148 0.0118 cuc, 3”、Ks =叱$ + = 2.5115 += 2.5159 (“F

26、 /z)因此訐石脫介篩篩下稀介質量為：1.55.0V26 =V21+Vn-V2, = 59.0198 + 7.5250-2.5159 = 64.0289 F/h)G26 = G17 -G25 = 11.5080-0.0148 = 11.4932 (t/h)Gf26 = G門7 -G/25 = 9.2234-0.0118 = 9.2116 (/?)Gc26 = G26 -G/26 = 11.4932-9.2116 = 2.2816 (t/h)W2G = W27 + % w25 = 59.0198 + 4.1536-2.5115 = 60.6619 (m3 /h)4. 1. 8磁選及分流作業(yè)的計算

27、：(1) 、中煤肝石磁選作業(yè)，取效率為n =99. 8%匕5 =V23+V26= 104.5044+64.0289 = 168.5333 (m3/A)G35 = G2A + G26 = 27.3053 +11.4932 = 38.7985 (t/h)G/35 = G廣、+ G/.% = 18.0146 + 9.2116 = 27.2262 (/?)G(35 = G35 -G/35 = 38.7985-27.2262 = 11.5723 (t/h)W35 = 94.6311 + 60.6619 = 155.2930 (m3 th)取磁選效率H =99. 8%,則:G/37 = g35 -7 =

28、27.2262x99.8% = 27.1717 (t/h)G37 = G/35/0.95 = 27.1717/0.95 = 28.6018 (t/h)Gl37 = Gy -G,.31 = 28.6018-27.1717 = 1.4301 (t/h)28.6018 “一/ 3”、V,7 = 22.2064 (m / /?)g” 1.288W* = 07 匕7 = 0.712x 22.2064 = 15.8109 (w3 /?)磁選尾礦：G36 = G35 -G37 = 38.7985一28.6018 = 10.1967 (t/h)Gc36 = q.35 -G<37 = 11.5723一 1

29、.4301 = 10.1422 (t/h)GO6 = Gv)-G.,6 = 10.1967-10.1422 = 0.0545 (t/h)% =吧5 一7 = 166.2930-15.8109 = 139.4821 (/ /?)%6 =%5一$ =168.5333 22.2064 = 146.3269 (w3/?)(2) 、假設只有經(jīng)精煤脫介篩脫出的稀介質進入磁選機，則:G3； = G20 = 46.9329 (t/h)GjuG,® = 22.9413 (“力)G/3020 =23.9916 (t/h)取效率為H =99. 8%,則:Gf3； =gJ 7 = 23.9916X99.8%

30、 = 23.9436 (t/h)= q34/0.95 = 23.9436/0.95 = 25.2038 (t/h)G j =-G; = 25.2038-23.9436 = 1.2602 (/?)則磁選尾礦為：Gj=G-G = 46.9329 - 25.2038 = 21.7291 (t/h)GJ=23.9916-23.9436 = 0.0480 (t/h)q J =- G< J = 22.9413-1.2602 = 21.6811 (t/h)(3) 、設分流效率為X,則有GgX的介質進入磁選機，假設只有分流的 進入磁選機，貝嘰=Gl2 X= 267.793X (/?)。"I?X

31、 =139.014X (t/h)= Gcl2 X = 128.779X (t/h)取效率為H =99. 8%,則:G/34” =Gf3o" = 139.O14Xx99.8% = 13&7360X (t/h)Gj =Gz"/0.95 = 13&7360X/0.95 = 146.0379X (t/h)Gw" = 一G/ J = 146.0379X-13&7360X =7.3019% (t/h)則磁選尾礦為：Gj =-= 267.793X -146.0379X = 121.7551X (t/h)GJ' =G"一G®&q

32、uot; =139.014X-13&7360X =0.2780X (t/h)G 33" =G/ -Gfi" = 121.755 IX -0.2780X = 121.4771X (t/h)根據(jù)煤泥平衡得：Ge； + G<3； + G<36 + gc2S + Gc22 + GH9 = Gc = GnGJ = G“ (GJ +% +G店 +%2 +G= 121.4771%則 X二22. 7913%則進入磁選的合格介質量為：G29 = GX = 267.793x22.7913% = 61.0338 (t/h)G/29 =C/12 X =139.014x22.79

33、13% = 31.6831 (r/?)G 29 = G,12 X = 128.779x 22.7913% = 29.3507 (力)V29 =VI2-X= 852.844x22.7913% = 194.3832 (m5 / h)W29 = Wl2 X = 738.563x 22.7913% = 168.3281 (m3 7) 分流出的合格介質量為：G28 = G12 - G19 = 267.793 - 61.0338 = 206.7592 (/ / 力)Gf28 = G八2 -G,29 = 139.014-31.6831 = 107.3309 (/?)028 = G2g - G/28 = 20

34、6.7592 -107.3309 = 99.4283 (t/h) 嶺$ = yi2 v29 = 852.844一 194.3832 = 658.4608 (m3 /)=W；2-8 =738.563-168.3281 = 570.2349 (m3/?)(4) 、精煤磁選作業(yè)計算匕)=V20 +K, =313.741 +194.3832 = 508.1242 (in5 / h)G3()= G2o + G29 = 46.9329 + 61.0338 = 107.9967 (t/h)G/30 =G/20 +Gf29 =23.9916 + 31.6831 =55.6747 (t/h)GcW = Gc20

35、 + Gm = 22.9413 + 29.3507 = 52.2920 (t/h) %)= yv2()+ IV29 = 293.856 +168.3281 = 462841 (”F / h) 取磁選效率口二99. 8%,Ge = G30- “ = 55.6747x99.8% = 55.5634 (t/h)= G/30/0.95 = 55.5634/0.95 = 58.4878 (t/h)q* =G-G小=5&4878-55.5634 = 2.9244 (t/h)魚=58.4878 = 45 4098 (加3 /,)34 g 斗1.288略=軸氐=0.712x45.4098 = 32.3

36、318 (m3 th)磁選尾礦：G33 = G30 -G34 = 107.9967-58.4878 = 49.4786 (t/h)G 33 = G30 一= 52.2920 2.9244 = 49.3673 (r/?)Gm = Gm Gf対=55.6747 55.5634 = 0.1113 (/h)%3 =o-'4 = 462.1841 -32.3318 = 429.8523 (m5 /h) 嶺3 =匕廠匕4 = 508.1242-45.4098 = 462.7144 (m3 /h)4. 1. 9補加新介質及水量的計算G/59 = G/19 + Gf22 + C/25 + G/33 +

37、 G/36=0.0384 + 0.0175 + 0.0118 + 0.1113 + 0.0545 = 0.2335( ) 取新介質中磁性物含量為95%,則：G/59 _ 0.23350.950.95= 0.2458(/?)n,_ = 0.0549 /0Ge59 = G59 - Gf59 = 0.2458 一0.2335 = 0.0123 (t/h)G® . G 0.0123T 0 8f 1.5補加水量:%=% - (%+昭+昭+陷 + %)= 1017.707-(570.2349 + 32.3318+115.1344+15.8109+23.5384)=260.6566(/«

38、3/?)4. 2數(shù)質量流程計算入洗原煤為年產(chǎn)量150萬噸，年工作日為330天，日工作時為16小時，兩 班生產(chǎn)，則QT xtc4. 2. 1準備作業(yè)的計算1、預先篩分入料：斤=100%, Q =Q =284.091（/），珂=26.10%設篩分效率0=100%則: 篩上：r2 =也=11.99% ,Q2 = Q r2 = 284.091x11.99% = 34.062( /?),4 =比50 = 34.13%篩下：e=D=100-11.99 = 88.01%ft = Q = 284.091 一 34.062 = 250.029( 防2、動篩跳汰排殲設排殲效率n二100%則:=/；50 肝=3.1

39、2%,Q4=Q 口 = 284.091x3.12% = &864(),A =450 肝=81.91%心=2-弓=11.99一312 = 887% = 02 一2 = 34.062-8.864 = 25.198(/?)11.99x34.13-3 12x81918.87= 17.25%3、破碎作業(yè)e6=e5 =25.198(r/7),人=人=17.25%最后得出的數(shù)質量為：Kj = i+ r6 = 88.01 + 8.87 = 96.88%Q7 = ft + Q = 250.029 + 25.198 = 275.227(/?)88.01x25.00 + 8.87x17.25 =2430%9

40、6.884. 2. 2重介分選作業(yè)的計算：1、旋流器的計算入料：“ =96.88%, =275.227()，4 = 24.30%rm =5 + D + D=996 + 4.00 + 7.00 = 20.96%4 J9.96x16.24 + 4.00x32.64 + 7.00x24.84“ “-一 22.242%20.96精煤：=42.63 + 20.96x70% = 57.302%& = Q E = 284.091 x 57.302% = 162.7898（ /?）442.63x8.87 + 20.96x70%x22.242 A）= 12.294%'57.302中煤：甩=19.

41、44 +20.96x20% = 23.632%Qo = Q rl（ = 284.091 x 23.632% = 67.1364（/?）= 21.138%19.44 x 20.90 + 20.96 x 20% x 22.24223.632肝石:ZJ1 =13.85+ 20.96x10% = 15.946%Qll=Qrll = 284.091 x 15.946% = 45.30 ll（f/i）Ai =13.85 x 79.53 + 20.96x 10% x 22.242 _pQ%15.94662、脫介作業(yè)的計算1、精煤脫介：假設經(jīng)弧形篩固體含量不變，即斤 2 = °，（212 =

42、76;，A 2 = °則：斤3 = 5=57.302%, 013=0=162.7898（/?）, A13 = 12.294%山精煤帶走的煤泥量為：Gcl9 =0.0357(/) r.I9 = 0.0357 / 284.091 = 0.0126%則：Go =伽一加=20.96 x 70% - 0.0126 = 14.6594%Qo = Q 金=284.091 x 14.6594% = 41.6460（ 力）A20 = 4： = 22.242%斤8 = (d - 腫3 = (57.302一20.96x 70%) x= 15.6032%Go.582.92= Q 斤$ = 284.091 x

43、 15.6032% = 44.328(/ /?)九=10.70% (查 表14, -1.4密度級灰分)金=金 _ & _ 心=57.302 一 14.6594一 15.6032 = 27.0394%019 = Q廠斤=284.091 x 27.0394% =76.816(/?)AI9 =小 A、一樂州$ 念 Ar = 7.8205%2、中煤脫介：假設經(jīng)弧形篩固體含量不變，即£ = 0，014 = 0，人4 = 0則:斤5 =斤0 = 23.632% f 215 =。1()=67.1364(), A15 =含。=21.138%由中煤帶走的煤泥量為：Gc22 =0.0091(/?

44、)re22 = 0.0091 / 284.091 = 0.0032%則：rn = rnfV - rc21 = 20.96x20%-0.0032 = 4.1888%Qu = Q f = 284.091x4.1888% = 11.9000(?/?)人 3 = Am = 22.242%r22=r5-r23 = 23.632 - 4.1888 = 19.4432%Q22 = e!5-e23 =67.1364-11.9000 = 55.2364( /?)A.=僅“宀小=20.90%r213、肝石脫介：假設經(jīng)弧形篩固體含量不變，即斤6=°，0】6=°，Ab =0則：斤7 =斤】=159

45、46%, ei7=gu = 45.301 l(r/i), A17 =An =72.129%由肝石帶走的煤泥量為：$25 =0.0030(力)r,25 =0.0030/284.091 = 0.0011%則：抵=仏| 一 逐= 20.96x10% 0.00106 = 2.0949%026 = Q L = 284.091 x 2.0949% = 5.9515（/ /力）A26 = 4, = 22.242%金=屯一巧& = 15.946 一 2.0949 = 13.8511%Q25 = Q" 一Q26 =45.3011-5.9515 = 39.3496（力）A” = 79.674%一

46、53、精煤脫水作業(yè)入料：心=27.0394%, 0,= 76.816（/?）, 綣=7.8205%取離心機的效率為：口二100%艮卩:令=°，。32 = °，出2 = 0則：心=7=27.0394%,°3i = 09 =76.816（f/h）,A31 =血=7.8205%4、磁選作業(yè)1、精煤磁選：$ =心=14.6594%, g3（=e2（= 41.6460（/?）, A30 = 22.242%假設：勺=0，。34=0，碼=0則：f = $=14.6594%, 033=030=41.6460（/"）,血3 = Ao = 22.242%2、中煤肝石磁選：與

47、5 =r23+r26 =6.2837% , Q35 =。23 + °26 =17.8515（/?）,血=仏+ 忌 A" = 22.242%假設：= 0 , Q37 = 0，九? = 0則：與6 =金=6.2837% , 036=035=17.8515（/?），A36 = A35 = 22.242%5、粗煤泥回收作業(yè)1、在精煤磁選尾礦和離心液中回收粗精煤：入料：心=與2 + 令=14.6594%, 038 =032+033=41.6460()，俎=3 食 + 鼻 * = 22.242% 與8假設：金=0，039 = 0，血=0則：皿=與8= 14.6594%, 0*) = 0

48、38 =41.6460()，= A38 = 22.242%2、在中煤肝石磁選尾礦中回收粗中煤：入料：金=6.2837%,= 17.8515(/?),人祐=22.242%假設：口=0, 041=0，41 =0則：2=6=6.2837%, C42 = g36 = 17.8515(/), A42 = A36 = 22.242%6、粗精煤離心脫水入料：金=0，039 = 0，九9 = 0取離心機的效率為：n二100%即：fy =0 , 04 = 0 , A44 = 0貝9 ： 口3 = 0，043 = °，An = 07、主洗精煤產(chǎn)品總量心5 =心 + © + 心3 = 15.60

49、32 + 27.0394 = 42.6426%©+©+Qb =44328 + 76.816 = 12144(力)婦=心飩+©蟲+2九=8.8741%154. 2. 3浮選濃縮作業(yè)計算：1、礦漿預處理器：假設精煤過濾機脫水返回礦漿準備器的物料：勺=°，碼=°則：心 8 =r47+r42+t52 = N) +命+ 如+心2 = 20.9431% 4 =4+2+052 =4+4+2 + 052 =59.497（）A© =.如'也一仝 /卜一僅兒 2 + © 人 2 = 22.242%2、浮選作業(yè)：由煤泥浮沉試驗報告得，浮選

50、精煤灰分：4=9.25%浮選精煤產(chǎn)率：3=77.5%入料：知=金=20.9467% ,。屮產(chǎn)幺=59.497（/?）, A49 = 48 = 22.242% 則浮選精煤：r50 =心9 選=20.9467x77.5% = 16.2335%= Q 心=284.091 x 16.2337 =46.1180（ 力人 ° = 4）=9.25%浮選尾煤：心二金一心=20.9431-16.2335 = 4.7096%05】=&9 - 050 = 59.4970-46.1180 = 13.379（ 力）亀=宜知-宜編=67 218%513、浮選精煤過濾：設濾液中固體含量為0,則：$2=0,

51、 Q52 = 0,人2=°金=& = 16.2335% , Q53 = Q5（） = 46.1180（/i）,= 9.25%4、浮選尾煤濃縮：設濃縮溢流中固體含量為0,則：$5=0, 05=°，45 =0r54 = $ =4.7096% , Q54 = Q5l = 13.379（/），=趣=67.218%5、浮選尾煤壓濾：設濾液中固體含量為0,則：$7=0,。刃=0,=0$6 = $4 = 4.7096% , a = Q54 = 13.379（ ）, A6 = A4 = 67.218%4. 2. 4最終精煤數(shù)質量計算：仏=rA5 4-/53= 42.6426 +16

52、.2335 = 58.8761 %Q* = © + = 121 144 + 46.118 = 167.2620（/ / h）42.6426x8.874U16.2337x9.25 =89777%58.87634. 3水量流程的計算4. 3. 1重介作業(yè)的計算由介質流程計算可知：町=1017.707 (m3/i) W9 =869.149 (m3/h)Wl0 = 135.352 (m3/h) , = 27.692 (m3th)4. 3. 2精煤脫水作業(yè)的計算1、弧形篩水量：% =869.149 (卅/力)W,2 = 738.563 (m3/j) W1? = 130.586 (m5 / h)

53、2、分流作業(yè)：VV2S = 570.2349 ("/?)= 168.3281 (/n3/i)3、脫介作業(yè)：噴水量為：叫=181.662%丿= 14.625 (m3/A)%。=293.856 (m3/h) % =3.767 (m3/h)4、磁選作業(yè)：W和=卜叫,+ W2o =462.1841/i)咒3 =429.8523 (m3/i) 叫4 =32.3318 (m3/h)5、精煤離心脫水：VVI9 = 14.625 (w3/)%100-%31假設末精煤帶走的水分為：,=10%細二后 g.08x63.40g&757 (m)則: %=14.625 -8.757 = 5.868 (m

54、3 / h)6、粗精煤回收：略=w32 +W33 =5.868+429.8523 = 435.7203 (m3/h)W39=Q(m3/h)7、煤泥離心機：Wy)=O(m3/h) W；3=O(m3/z) W44=0(m3/h)4. 3. 3中煤、殲石脫水作業(yè)1、弧形篩的水量：WiQ = 135.352 (m3 /h) Wi4 =115.1344 (m3 /h) Wi5 = 20.2176 th)1 = 27.692 (m3 /h) Wi6 = 23.5384 (m3 lh) Wn = 4.1536 (m3 lh)2、脫介篩：中煤噴水量：= 82.8405 (m3/h)W22 = 8.4270 (m3th) 略=94.6311 (m31h)肝石噴水量：IV27 = 59.0198 (w3/i)%6 =60.6619 (m3/h)