- Phuy s~t co sue chua 120, 250 ho~c 400 kilogam.
- BQ dAy t6i thi8u 1,2mm
_ Khi dung nuac lam chAt hflO v~, muc nuac t6i thi8u la 20cm. b) Dong goi d~ng b6n chua
Thuy tinh 10kg Nh\l'ab 50kg Kim lo~i 50 kg Giiya, b 50 kg Phipa, b 50 kg 34
••
Bdn chua bfulg thep phfli dam bao nhfrng yeu cAu sau:
. - .Khi su d\lng, nuac lam ch~t bao v~, vi~c n~p phBt ~ho a~i~t dQ 60oC, tong the tich hoa chat va nuac khong dugc Ian hon 98% the tich bon chua.
- Neu su d\lng khi Ni to dS lam ch~t bao v~, khi n~p hoa ch~t anhi~t dQ 60oC, khong dugc n~p qua 96% thS tich bdn chua. Khong gian con l~i dugc n~p khi Ni to du dS dam bao rfulg khi han hgp nguQi di ap su~t ben trong bdn chua cling khong th~p hon ap su~t khong khi. N~p bdn chua phai dam bao dti kin khi bao v~ khong thS ro ri ra ngmli.
- Bdn chua khong dugc g~n thiet bi gia nhi~t ben trong rna phai su d\lng h~ thBng gia nhi~t ben ngoai yo. Tuy nhien, cac dUOng Bng thao hoa ch~t co thS trang bi thiet bi nung nong tI1Jctiep. Thiet bi gia nhi~t dBi vm vo bdn chua phai co bQ ph~ kiSm soat nhi~t dQ dS nhi~t dQ gia nhi~t cho bdn chua khong vugt qua nhi~t dQ khi n~p vao bdn. Cac h~ thBng Bng dful khac dSu phai l~p d~t phi a tren bdn chua. Cac cua cua bdn chua phai atren vi tri cao hon muc n~p phBt pho cao nh~t va dugc dong kin hoan toan vai n~p co khoa. Bdn chua phai dugc trang bi ddng hd do xac dinh muc n~p hoa ch~t. Trong truOng hgp mc nhan bao v~ la nuac thi phai co mQt ddng hd do khac dS xac dinh muc nuac dugc n~p vao bdn chua.
- Bdn chua phai dugc dong kin va co khoa.
- ChiSu day cua bdn chua tBi thiSu da,p trng theo yeu cu~ trong bang sau DuOng kinh Ian nhat tinh,
2-3 2-3
theo mep cong cua bon <2 chua (m)
ThS tich bdn chua ho~c
<3,5 >3 khoang chua (m3) ~5
nhung ~ 5 Thep khong ri 2,5 mm 2,5 mm 3 mm DQ dAytBi Cac lo~i thep khac 3 mm 3 mm 4 mm
thiSu Hgp kim nhom 4 mm 4 mm 5 mm
Nhom nguyen chat
6 mm 6 mm 8 mm
(99,8%)
Chu y: Cac phuy, b6n chua ph6t pho dq,ng huyJn phft hoi;ic dq,ng chily sau khi sit dl:tng niu chua dU(1clam sq,chphdi luon chua day nuac va qulm ly tuang duang v6'i cac phuy, b6n chua dang sit dl:tng.