3.2 Million kcal Hot Air Furnace Project for a Salt Processing Company in Kenya, Africa

Project Overview

A salt processing company in Kenya primarily engages in the refining and processing of industrial and table salt. Salt drying is a critical stage in the production process, requiring extremely high standards for hot air temperature stability, cleanliness, and equipment corrosion resistance. The enterprise’s existing drying equipment suffered from issues such as unstable heat supply, severe corrosion of heat exchangers, and significant fluctuations in salt moisture content, which directly affected the quality and production capacity of the finished salt. To address these challenges, the enterprise conducted extensive research and ultimately chose to partner with Huanuo Boiler to introduce a 3.2 million kcal hot air furnace equipped with a drying system.

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Solution

Tailored to the specific process requirements of salt drying, Huano Boiler’s technical team provided the company with a customized 3.2 million kcal hot-air furnace, along with a high-efficiency dryer and a weighing and conveying system:

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Separate Design for the Combustion Chamber and Heat Exchanger

The combustion chamber and heat exchanger feature a separate structure, completely isolating flue gas from clean hot air. This prevents secondary contamination of the salt by impurities and harmful components in the flue gas at the source, ensuring the finished salt meets food-grade hygiene standards. Additionally, the separate structure facilitates daily inspection and maintenance, significantly extending the equipment’s service life.

310 Stainless Steel Used in Critical Components

To address the industry challenge of corrosion in high-salt environments, the high-temperature sections of the heat exchanger and critical components are constructed from 310 stainless steel. This material offers excellent resistance to high temperatures and chloride ion corrosion, enabling long-term, stable operation even under harsh conditions of high temperature and high salinity, thereby significantly reducing maintenance frequency and replacement costs.

Precise Weighing and Continuous, Efficient Drying

The dryer’s conveyor belt is equipped with an intelligent weighing system that monitors material throughput in real time, enabling precise feeding and automatic adjustment. This ensures even material distribution and consistent drying throughout the process, resulting in a stable and controllable moisture content in the finished salt.

Efficient and Stable Heat Output

The 3.2 million kcal hot-air furnace provides ample heat with minimal temperature fluctuations, meeting the demands of large-scale continuous drying. The furnace’s optimized design ensures high thermal efficiency, effectively reducing fuel consumption and enabling energy-efficient operation.

Core Project Advantages

Stable moisture content in finished salt significantly improves product quality, meeting international food-grade salt standards.

The heat exchanger’s excellent corrosion resistance significantly extends equipment service life and substantially reduces maintenance costs.

Improved drying efficiency reduces energy consumption per unit of output, effectively controlling the enterprise’s overall production costs.

The hot air is clean and pollution-free, completely eliminating the risk of secondary contamination during the salt drying process and enhancing market competitiveness.

Client Testimonial

“Our production process requires a long-term, stable supply of hot air, and we also need equipment that can adapt to varying local fuel conditions. Huanuo Boiler provided a comprehensive hot air system solution tailored to our production needs. The equipment aligns well with our production line requirements in terms of hot air temperature control, fuel configuration, and automated operation.”

Mike

Corporate Project Manager

“Huanuo’s SZS series steam boiler has performed very stably on our continuous paper production line. The steam pressure fluctuation is minimal, fully meeting the high-quality steam requirements of the drying cylinders. After more than a year of operation, it has maintained high thermal efficiency and a low failure rate—one of the most reliable pieces of equipment on our line.”

Budi Santoso.

Equipment Manager, a major paper group in Indonesia

“Pharmaceutical processes have extremely high requirements for steam cleanliness and temperature control. Huanuo’s electric steam boiler produces clean steam with no on-site emissions and provides precise temperature control. It helped us smoothly pass several international quality system audits. It is a boiler that truly understands the needs of the pharmaceutical industry.”

María González.

Production Director, a pharmaceutical company in Mexico

“Our hotels have very high requirements for the quietness and safety of hot water supply. Huanuo’s vacuum hot water boiler operates very quietly and maintains a stable water temperature—guests hardly notice the equipment is there. Since the upgrade, hot water complaints have dropped significantly, and management has become much easier.”

Ahmed Hassan.

Head of Engineering, a hotel group in Egypt

“The stenter machines in our dyeing and finishing process are very sensitive to thermal oil temperature stability. Huanuo’s thermal oil heater heats up quickly with minimal temperature fluctuation, and the finishing effect has improved noticeably. Fuel consumption is also considerably lower than that of the original equipment. Their after-sales service responds promptly, making the cooperation very smooth.”

Mehmet Yılmaz

Production Manager, a textile dyeing and finishing company in Türkiye

“Our washing workshop requires frequent steam on/off cycles and has limited space. Huanuo’s once-through steam boiler occupies a small footprint and produces steam within 2 to 4 minutes, fully keeping up with our pace. The steam is stable and operation is simple—very suitable for our high-intensity washing conditions.”

Rafiq Islam.

Operations Supervisor, a garment washing company in Bangladesh

“Food processing has strict requirements for both steam quality and emissions. Huanuo’s condensing steam boiler has high thermal efficiency and a low exhaust gas temperature, with NOx emissions far below local standards. It helped us easily pass environmental reviews, while natural gas costs have also dropped noticeably.”

Khalid Al-Farsi

Plant Manager, a food processing plant in Saudi Arabia

“We use local agricultural and forestry residues as boiler fuel. Huanuo’s biomass steam boiler has strong fuel adaptability and runs stably, which not only reduces fuel costs but also eases solid waste disposal pressure. Emission indicators meet local environmental requirements, and the overall benefits have exceeded expectations.”

Johan van der Merwe

Energy Manager, a beverage producer in South Africa

“Chemical plants have extremely high requirements for heat source continuity. The waste heat boiler customized by Huanuo fully recovers waste heat from process tail gas and produces steam stably, significantly reducing the cost of purchased steam. Since commissioning, the equipment has operated reliably and provided real help for our energy-saving and consumption-reduction efforts.”

Rajesh Kumar

Technical Director, a chemical company in India

“Our region has long winters and extremely low temperatures, so heating equipment must withstand severe conditions. Huanuo’s hot water boiler starts quickly and supplies heat stably even in low-temperature environments. Throughout the entire heating season, there were no unplanned shutdowns, and our residential heating guarantee capability has improved markedly.”

Dmitry Ivanov

Operations Manager, a district heating company in Russia

“Our exported fruits and vegetables have very high requirements for drying color and moisture content. Huanuo’s hot air furnace provides precise temperature control and clean hot air. After drying, the fruits and vegetables retain a natural color and stable quality, fully meeting export standards. Energy consumption is also lower than that of the original equipment, giving us more reliable capacity during peak season.”

Camila Rojas

Production Head, a fruit and vegetable processor in Chile