Twin roll press adopts displacement pressing principle to achieve continuous dehydration and washing of paper pulp. It is a kind of black liquor extraction and bleaching equipment with advanced function and high technology in the world. It is suitable for chemical pulp, chemical-mechanic pulp and waste paper pulp. The performance of this product is reliable, the operation index reaches the international advanced level, and it can equipped with project that the annual output of which is 10 ~ 1.5 million tons. 

Twin roll press we offer

The equipment can be operated on a single machine and can be combined with multiple paper pulper machines for the treatment of large production scale paper pulp for paper making industry.

Model /Item	Drum length (mm)	Drum Dia. (mm)	Drum Speed (rpm)	Feed Consistency(%)	Discharge Consistency (%)	Production  Capacity
						Straw / Bagasse pulp	Bamboo pulp	Wood pulp
AMSG712	1200	700	2~20	3.5~10	20~35	30~40	60~80	80~100
AMSG915	1550	900	2~15	3.5~10	20~35	40~60	85~120	130~160
AMSG920	2000	900	2~15	3.5~10	20~35	55~85	125~160	175~210
AMSG928	2820	900	2~15	3.5~10	20~35	80~120	165~220	250~300
AMSG935	3500	900	2~15	3.5~10	20~35	110~150	225~280	310~370
AMSG940	4000	900	2~15	3.5~10	20~35	120~170	220~310	350~400
AMSG945	4500	900	2~15	3.5~10	20~35	160~180	285~350	400~480
AMSG1532	3200	1500	2~15	3.5~10	20~35	220~350	450~600	700~800
AMSG1540	4000	1500	2~15	3.5~10	20~35	400~550	800~1000	1200~1500
AMSG1550	5000	1500	2~15	3.5~10	20~35	500~650	1000~1300	1700~1800
AMSG1572	7200	1500	2~15	3.5~10	20~35	750~1000	1500~1800	2500~3000

Twin roll press working principle

At a certain pressure, the pulp with low concentration is fed into a closed pulp slot by a screw conveyor. A pair of groove pressure rollers are built in the pulp groove, and a series of groove cracks are arranged on the surface of the pressure roll, which passes through the axial holes through the roll body and is discharged from the end of the roller. In order to prevent the clogging of the gully, a group of thinning knives were inserted into the crevice, and the axial hole entered into the water or dilute black liquor under certain pressure from the axial hole to dredge and clean the groove and drain hole. The pulp is squeezed to a high concentration and then peeled into the pulp pool by the scraper.

Twin roll press advantages

1. Set dehydration, displacement, press in one, washing effect is better.
2. With independent intellectual property rights of the pulping device, CNBM can achieve a more perfect pulp distribution effect.
3. Equipped with advanced hydraulic drive system, stable and reliable operation.
4. Adopt press principle, no vacuum requirement, realize different height installation, save the investment of factory building.