127
bo’lmasligi kerak. Moyni to’liq almashtirish seParator har 300-350 soat
ishlagandan keyin amalga oshiriladi.
SeParator unumdorligi quyidagi tenglama orqali aniqlanadi:
Q =
4,8
β
n
2
z tg
α
(R
3
maks
- R
3
min
)
d
2
t l/soat,
(4-2)
Bu yerda
β
- barabanning F.I.K. (0,5-0,7); P – barabanning minutdagi
aylanishlar soni;
z –
barabandagi tarelkalar soni;
α
- baraban tarelkasining og’ish
burchagi,
grad;
R
maks
– baraban tarelkasining maksimal radiusi,
sm;
R
min
–
baraban tarelkasining minimal radiusi,
sm; d -
zarrachalar diametri,
sm; t –
mahsulotning harorati, °S.
SeParator elektrodvigateli quvvatini quyidagi tenglama orqali aniqlash
mumkin:
(
)
11
3
3
10
36
,
1
⋅
+
⋅
⋅
=
n
R
H
R
N
ϕ
β
kVt, (4-3)
bunda
β
- ishqalanishda quvvat sarfini inobatga oluvchi koeffitsient (1,1-1,5);
φ
– koeffitsient,
φ=1,5-1,6; R
–
barabanning tashqi radiusi,
sm; P –
barabanning
sekunddagi aylanishlar soni;
N
— konus qobig’ining yarmigacha baraban
balandligi,
sm.
Qon uchun ishlatiladigan seParatorlar unumdorligi quyidagi tenglama
orqali ifodalanadi:
Q
=
0,04
⋅
β
64
100
r z P V n
2
l/soat
,
(4-4)
Bunda
β
- seParatorning texnologik F.I.K.(
β
= 0,6); r – qonning
ajraluvchanligi (r= 2,2
•
10
-8
sek);
z
–
tarelkalar soni; V - hisobiy hajm,
sm
3
, u
quyidagi tenglama bo’yicha aniqlanadi:
V
=
π
(R
2
maks
- R
2
min
)h
sm
3
,
(4-5)
R
maks
- tarelkani maksimal radiusi,
sm;
R
min
-
tarelkani minimal radiusi,
sm;
N -
tarelkalar o’rtasidagi masofa,
sm; P-
barabanning minutdagi aylanishlar soni;
R -
barabanning to’lishi:
R =
h
H
ϕ
;
(4-6).
N -
baraban balandligi,
sm.
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