Steam boilers are the core heat source equipment in papermaking production, running through the entire process from pulping to finished products.
1. Pulping and cooking: High-temperature steam cooking of wood chip raw materials to separate fibers is the key to pulping.
2. Wood pulp treatment: Provide heat for the pulp washing and bleaching processes to ensure the whiteness and quality of the pulp.
3. Paper sheet drying: Steam is provided to the drying cylinder to evaporate the moisture of the wet paper. Steam consumption accounts for the highest proportion. Unstable steam can cause the paper to wrinkle, break, and produce defective products.
4. Auxiliary production: Provide process hot water and heating for coating. Large factories can be equipped with alkali recovery boilers. While treating waste liquid, steam is produced to recycle energy.
5. Production Assurance: A stable steam supply directly affects production capacity and the quality of finished products. Boiler failure will cause the entire production line to shut down, resulting in the scrapping of raw materials. It is also a key equipment for controlling production costs.
Steam boilers are the core heat source in the papermaking industry, providing steam for the entire process including pulping, bleaching, and paper drying. They directly determine product quality, production capacity, and production costs.