The Leizhan Slag Lifting Machine is typically installed beneath the junk trap of a D-Type Hydrapulper, the base of a sediment chamber, or the underflow outlet of high-consistency cleaners. Its primary function is to collect, elevate, and discharge dense slag and heavy rejects that have been separated from the fiber suspension. By automating this extraction process, the unit ensures that the primary pulping and screening equipment can operate continuously without frequent stop-and-clean cycles.

 

Leizhan’s Slag Lifting Machine operates through a robust mechanical conveying mechanism—often utilizing a wear-resistant spiral or scraper assembly housed within a sealed trough or vertical lifting column. Heavy impurities that settle by gravity into the collection hopper are captured by the rotating or reciprocating lifting element. As the mechanism engages, it transports the compacted slag upward against a regulated head of water. A specially designed dewatering or drainage section along the transport path allows excess water and loose fibers to flow back into the process, while the concentrated heavy rejects are discharged at a height suitable for collection bins or conveyor belts. Advanced models feature pneumatic or electrically actuated discharge gates coordinated with level sensors, enabling intermittent operation timed precisely to the accumulation rate of contaminants.

 

For paper mills seeking to optimize their fiber recovery and safeguard their capital equipment, Leizhan’s slag lifting technology offers a proven and economical solution.
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