DOSING ACCURACY IN THE PAPER INDUSTRY | QDOS PERISTALTIC PUMPS
A lowering in oven temperature of 15C correlates to a 3% reduction in gas consumption and 3% reduction in greenhouse gas emissions. A return on investment was delivered in just four weeks. 3%
Additional benefits in the addition of lime include: higher machine throughput (estimated at 5%) due to lower equipment pollution levels; less product shrinkage thanks to lower oven temperature; low product odour and lower odour emissions. Any future research or development on chemical dosing equipment should focus on ultra-low flow. The new array of nano-scale high-performance chemicals will make an entrance into the paper and pulp industry in the near future. With this in mind, high precision chemical metering will be a necessity as the industry strives for fully closed loop water systems and zero emissions.
There is a direct correlation between the dry solid content at the entrance to the oven and the required oven temperature. By accurately metering lime to the pulp, Huhtamaki succeeded in lowering the average oven temperature over the course of the trial. Summary Due to the nature of the operation at Huhtamaki (24/7 for more than 350 days a year), this relatively modest decrease had a significant impact. A lowering in oven temperature of 15C correlates to a 3% reduction in gas consumption and, consequently, 3% reduction in greenhouse gas emissions. This equals a reduction of 18,000kg in carbon emissions per oven, per year, delivering a return on investment in just four weeks.
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