Vacuum drum washer is a common pulp washing equipment. It is suitable for washing all kinds of paper pulp such as wood pulp, straw pulp and reed pulp etc. Vacuum drum washer is also a key equipment for paper and pulp industry to solve the problems of waste water pollution and the alkali recovery. Vacuum drum washer can be used alone or in series.

Vacuum drum washer we offer

Model /Item	Drum length (mm)	Drum Dia. (mm)	Drum speed (rpm)	Feed Consistency(%)	Discharge Consistency (%)	Capacity( black liquor extraction)（Kt/m2.d）
						Straw /Bagasse pulp	Bamboo pulp	Wood pulp
AMXJ35	3200	3500	0.8~3	1.5~2.5	8~12	52.5~87.5	175~210	210~280
AMXJ40	3650	3500	0.8~3	1.5~2.5	8~12	60~100	200~240	240~320
AMXJ45	4100	3500	0.8~3	1.5~2.5	8~12	67.5~112	225~270	270~360
AMXJ50	4550	3500	0.8~3	1.5~2.5	8~12	75~125	250~300	300~400
AMXJ55	5000	3500	0.8~3	1.5~2.5	8~12	82~137.5	275~330	330~440
AMXJ60	5450	3500	0.8~3	1.5~2.5	8~12	90~150	300~360	360~480
AMXJ65	5200	4000	0.8~3	1.5~2.5	8~12	98~162.5	325~390	390~520
AMXJ70	5600	4000	0.8~3	1.5~2.5	8~12	105~175	350~420	420~560
AMXJ75	6000	4000	0.8~3	1.5~2.5	8~12	113~187.5	375~450	450~600
AMXJ80	6400	4000	0.8~3	1.5~2.5	8~12	120~200	400~480	480~640
AMXJ85	6800	4000	0.8~3	1.5~2.5	8~12	127~212.5	425~510	510~680
AMXJ90	7200	4000	0.8~3	1.5~2.5	8~12	135~225	450~540	540~720
AMXJ95	7600	4000	0.8~3	1.5~2.5	8~12	143~237.5	475~570	570~760
AMXJ100	8000	4000	0.8~3	1.5~2.5	8~12	150~250	500~600	600~800
AMXJ105	7450	4500	0.8~3	1.5~2.5	8~12	157~262.5	252~630	630~840
AMXJ110	7800	4500	0.8~3	1.5~2.5	8~12	165~275	550~660	660~880
AMXJ115	8150	4500	0.8~3	1.5~2.5	8~12	173~287.5	575~690	690~920
AMXJ120	8500	4500	0.8~3	1.5~2.5	8~12	180~300	600~720	720~960

Vacuum drum washer working principal

Vacuum drum washer is divided into a number of rooms, each room is related with the the seat corresponding room through the lattice filtrate port, the whole end face can be divided into the vacuum area, pulp peel area and exhaust area by the valve core.

The drum turning in the tank with the pulp. Each turn of the drum, the pulp flows out of the drain hole through the vacuum filter area, the pulp peeling area, and the exhaust zone. Due to vacuum suction, the liquid in the pulp flows out of the filtrate flow channel and is drained by the distribution valve. The pulp is adsorbed on the outside surface of the drum.This is the filtration, pulp peeling and exhaust process.

Vacuum drum washer advantages

CNBM vacuum drum washer features mature technology, stable running, simple operation and good performance.

1. High productive capacity per area.
2. The drum body adopts the conical flow technique to increase the flow rate, the flow of filtrate and improve the production capacity.
3. The plane valve core adopts multi-point fixed technology, the operation gap is not changeable, the vacuum degree is stable.
4. The planar distribution valve covers a small area with compact structure and convenient maintenance.
5. Corrugated filter board can increase the effective filtration area. It is anti-pouring and not easy to "paste the net".
6. The dispersive press and stirring technology are good for mixing the pulp and improving the washing effect.
7. Compound side board, overflow weir feed, separated seal structure, improve operation stability, convenient maintenance.
8. Driving is mainly regulated by frequency converter, reduces power consumption.