How to Realize The Resource Utilization of Paper Mill Light Residue!
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- Issue Time
- Mar 3,2025
Summary
In the field of recycled paper, a huge amount of recycling has brought severe environmental problems: “Every production of 1 million tons of recycled paper, will produce 120,000 tons of paper waste.” How to deal with this paper mill waste?
In the field of recycled paper, a huge amount of recycling has brought severe environmental problems: “Every production of 1 million tons of recycled paper, will produce 120,000 tons of paper waste.” How to deal with this paper mill waste?
At the same time, the high price of coal has made it difficult to reduce the cost of coal combustion in the paper industry, which relies on fossil energy as the main source of heat production.
A New Perspective: Paper Mill Waste Resourceful Treatment
Paper mill waste is mainly light residue from paper mills, and the difficulty of treatment lies in the complicated composition and impurities such as metals and heavy substances, which require high loads on the terminal incineration boiler, low combustion rate and very low thermal efficiency.
For the characteristics of paper mill waste, Harden Machinery Ltd. proposes the energy cycle model of “fossil fuel (coal)——pulp/paper mill light residue——SRF/RDF”.
Preparation of paper mill light residue into SRF/RDF to replace fossil energy, forming a self-produced and self-utilized energy cycle for paper mill waste.
Paper Mill Waste RDF/SRF Preparation System
Through the combination of “Modularization, Integration, Automation” large-scale environmental protection equipment, and the preparation process of “fine crushing + screening + magnetic separation.”
Harden Machinery Ltd. can prepare the light residue from paper mills into RDF/SRF with a water content and impurity rate of less than 10%. The capacity of the system has reached 35 tons/day.
The calorific value of this RDF/SRF is very high and can reach about 75% of the calorific value of standard coal. It can not only significantly improve energy efficiency, reduce coal consumption, and save costs when applied to industrial furnaces.
In addition, the light residue of the paper mill can be resourceful, harmless, and reduced in volume, which is very suitable for the current and future trend of carbon emission reduction.
In the context of global “Carbon Emission Reduction”, paper-making companies through the RDF/SRF preparation technology, can achieve resource treatment of paper mill light residue and improve energy efficiency.
This is the most important way of low-carbon development for paper companies and the preferred way for paper-making companies to deal with “Carbon Neutrality”.