As simple the basic design of a cleaner or hydrocyclone is as complex is the flow within such an apparatus. Figure 1 shows a sketch of the basic design parameters of a hydrocyclones. The fluid is pumped through the inlet and due to the geometry of the cleaner a rotating flow develops. In steady state…

On September 16, 2026, during the China International Paper Technology Exhibition(CIPTE), Yunda successfully signed a contract with CỔ PHẦN GIẤY ĐỒNG PHÁT ECO (Vietnam) for a 250,000 TPA packaging paper project, covering the complete stock preparation and approach flow systems. The project also includes Yunda first 3,750 mm drum pulper delivered to the Vietnam market.…

Intelligent Solutions · Dedicated Service to the Pulp & Paper Industry In August 2026, Yunda officially signed a strategic contract with Liansheng Pulp & Paper (Zhangzhou) Co., Ltd. for the supply of pulping equipment. Yunda will provide key stock preparation equipment and a broke handling system solution for its 400,000-ton-per-year tissue paper production line. The…

Cleaning is a separation process which makes use of centrifugal forces created by a rotating flow of the pulp suspension. It can be found directly after pulping in the form of high density cleaning at consistencies of about 3 to 5 % and later in the process at consistencies in the range of 0.8 to 2 %.…