Txhawm rau txiav txim siab lub sij hawm ziab ntawm cov ntoo sawn hais txog ntau yam, txoj kev tsim los ntawm Central Scientific Research Institute for Mechanical Wood Processing yog pom zoo.

Cov txheej txheem kwv yees coefficients los ntawm cov ntxhuav 1–8. Lawv coj mus rau hauv tus account hom ntoo, thickness, dav thiab ntev ntawm cov khoom, qhov zoo ntawm nws ziab, kev tsim kho ntawm lub tshuab ziab khaub ncaws, thawj zaug thiab zaum kawg av noo.

Coefficients raws li hom thiab qhov ntev ntawm ntoo

Table 1 — Coefficient raws li ntoo hom

Table 1: Coefficient raws li ntoo
Hom ntoo Spruce, fir Bor Birch Bukva Arish Oak
Coefficient 0 4 26 41 46 71

Table 2 - Coefficient raws li cov khoom thickness

Table 2: Coefficient raws li cov khoom thickness
Thickness, mm 13 16 19 22 25 30 35 40 45 50 55 60
Coefficient 0 9 16 23 28 36 43 49 54 59 65 70
Thickness, mm 70 80 90 100 110 120 130 140 150 180 220 280
Coefficient 80 89 97 104 110 116 121 126 130 142 155 171

Table 3 — Coefficient raws li cov khoom dav

Table 3: Coefficient raws li cov khoom dav
Kev sib txheeb ntawm cov khoom dav rau nws thickness W:D to 1,5 2 3 5 10
Coefficient 0 5 9 14 18

Table 4 - Coefficient raws li cov khoom ntev

Table 4: Coefficient raws li cov khoom ntev
Length, m 0,3 – 0,4 0,5 – 0,6 0,7 – 0,8 0,9 – 1,0 via 1,0
Coefficient 0 6 11 14 15

Coefficients raws li kev ziab kom zoo thiab tshuab ziab khaub ncaws

Table 5 - Coefficient raws li cov khoom kom qhuav zoo

Table 5: Coefficient raws li cov khoom kom qhuav zoo
Qhuav qeb ziab ib txwm ntoo (II qeb) Zoo qhuav ntawm sawn ntoo rau rooj tog, ua wagons.. (Kuv qeb) High-zoo ziab rau kev ua log, ntoo qhib nag..
Coefficient 0 8 20

Table 6 — Coefficient raws li lub tshuab ziab khaub ncaws

Table 6: Coefficient raws li lub tshuab ziab khaub ncaws
Yam khoom SRC With countercurrent ncig Nrog ntuj lossis tsis muaj zog tsav ncig Channels nrog ntuj ncig
Coefficient 0 4 8 15

Cov khoom siv tau raug coj mus rau hauv tus account thaum xam cov coefficient. Cov khoom siv xwm txheej txhais tau tias cov ntoo ntoo tuab tuab50 mm, dav150 mmthiab ntev tshaj1 m, nrog thawj cov av noo60%thiab kawg12%. Cov khoom no, nteg on tuab pads25 mm, yuav tsum tau qhuav nyob rau hauv dryers nrog ntuj huab cua ncig thaum lub sij hawm6hnub.

Siv cov coefficients muab rau hauv cov ntxhuav1-8, lub sij hawm normative rau ziab sawn ntoo tuaj yeem txiav txim siab.

xam piv txwv

Nws yog ib qho tsim nyog los txiav txim siab lub sijhawm ntawm kev ziab ntawm cov ntoo thuv tuab40 mm, dav20 mm(qhov piv ntawm dav rau thickness200:40=5) thiab ntev tshaj1,0 m. Cov laug cam yog tsim los rau kev tsim cov nplooj nplooj ntoo, piv txwv li qhov ziab kom zoo yog qeb I, thiab lawv tau qhuav hauv cov tshuab ziab khaub ncaws nrog nrawm nrawm rov qab cua los ntawm thawj cov av noo.60%mus rau qhov av noo heev9%.

Cov coefficients sib xws muab:

K = 4 + 49 + 14 + 15 + 8 + 0 + 82 = 172

Coefficients raws li cov av noo thiab theem ntawm ziab

Table7- Coefficient raws li thawj zaug thiab zaum kawg cov av noo ntawm sawn ntoo

Rooj7: Coefficient raws li thawj zaug thiab zaum kawg humidity ntawm sawn ntoo
Thawj cov av noo,% Cov av noo kawg,%
6 7 8 9 10 11 12 13 14 15 18 20 22 25
20 62 56 50 45 38 32 25 18 9 0 / / / /
25 70 65 60 55 50 45 41 35 30 25 6 / / /
30 75 70 66 62 58 54 50 46 42 38 25 15 30 /
35 79 75 71 67 64 60 57 54 50 47 38 29 21 7
40 82 78 75 71 68 65 62 59 56 53 44 38 32 21
45 85 81 77 75 72 69 66 63 61 58 50 45 40 31
50 87 83 80 77 75 72 69 67 65 63 55 51 46 38
55 89 85 82 80 77 75 72 70 68 65 59 55 50 44
60 90 87 84 82 79 77 75 72 70 68 62 58 55 48
65 92 89 86 84 81 79 77 75 73 71 65 61 58 52
70 93 90 88 85 83 81 78 76 75 73 67 64 61 55
75 94 92 89 87 85 82 80 78 77 75 69 66 63 58
80 95 93 90 88 86 84 82 80 78 77 71 68 65 61
85 96 94 91 89 87 85 83 82 80 78 73 70 67 63
90 97 95 92 90 88 86 85 83 81 79 75 72 69 65
95 98 96 93 91 89 87 86 84 82 81 76 73 71 67
100 99 97 94 92 90 88 87 85 83 82 77 75 73 69
110 101 98 96 94 92 90 89 87 85 84 80 77 75 74
120 102 99 97 95 94 92 90 89 87 86 82 79 77 76
140 104 102 100 98 96 95 93 92 90 89 85 83 81 78

Table 8 — Coefficient rau recalculation of the drying mode in time after humidity reduce

Table 8: Coefficient rau rov xam lub tshuab ziab khaub ncaws nyob rau lub sijhawm tom qab cov av noo txo
Txo cov av noo, % 60-50 50-40 40-35 35-30 30-25
Qhuav theem coefficient 0,11 0,14 0,08 0,10 0,11
Txo cov av noo, % 25-20 20-15 15-12 12-10 10-8
Qhuav theem coefficient 0,14 0,17 0,15 0,11 0,14

Cov ntsiab lus: softwood thiab hardwood lumber, ntoo ziab, ntoo ziab kub thiab av noo, ntoo qhov rais thiab qhov rooj ntau lawm thiab requirement muab.