Swedish boiler combustion optimization specialists Wave Impact Heat Management AB (Heat Management) has announced that it has recently received the first orders for its proprietary High Impact Sootblowing System (HISS) for recovery boilers in North America and Southeast Asia. The project objective is to increase renewable power generation and process availability. This is achieved by soot blowing more often, with less steam, which is a cost-efficient way of improving plant efficiency.
According to the company, its optimized steam soot blowing technology has been gaining momentum in central and northern Europe in recent years. The acceptance of the technology following the proven results and several other benefits on boiler operations has now reached North America and Southeast Asia, with the first orders received.
Soot blowers in recovery boilers at pulp and paper mills are generally operated non-stop, to keep the flue gas path clean and prevent the fouling and sintering of accumulations on heat exchanger surfaces.
An issue with conventional soot blowing is that over 90 percent of the cleaning effect occurs at the first impact of the steam at the heat exchanger surfaces, which means that the time and steam used on the return stroke mostly go to waste.
Tailored soot blower solution
Heat Management’s patented High Impact Sootblowing System (HISS) is a tailored solution for recovery boilers and includes a software and hardware update together with process follow-up and optimization by soot blowing experts.
According to the company, its system can reduce soot blower steam consumption by 30-45 percent, or increase soot blowing capacity (starts per day) by 100 percent, or a combination of both, bringing about significant environmental and economical benefits.
For North America, the plant suffers from availability issues related to the wear of heat transfer surfaces. The patented HISS solution will significantly reduce the wear, increase the reliability and heavily reduce maintenance costs related to the wear of heat transfer surfaces caused by condensate in soot blowing steam.
The order received for the recovery boiler system in Southeast Asia is to save steam and make operation more sustainable. The excess steam will be used in the mill process and for additional renewable power generation.
HISS doubles the cleaning capacity of the existing steam soot blowing system, allowing the customer to operate the boiler at higher loads for longer periods. The flexibility of the HISS system allows for both steam savings and increased cleaning capacity, which the company says is a true game-changer for this industry.
We now expect more pulp mills in both North America and Asia to also start plans for investments in High Impact Sootblowing technology. We can already see that 2021 will be a year of both sales records and important strategic steps, commented Ulrika Reimer CEO of Heat Management.
