Laitex's ESP equipment and ash conveying solutions focus on the efficient handling, conveying, and recycling of ash and chemicals produced in a recovery boiler.
Recovery boiler’s ash conveyors
The black liquor burned in the recovery boiler produces chemicals for white liquor, and steam. The steam generated as a by-product is utilized in the plant’s electricity production. However, the steam contains various useful chemicals such as chloride, potassium, and ash. Instead of being released into the atmosphere, substances can be reused in processes. In addition, ash also remains at the bottom of the boiler, and can be utilized later in processes.
Laitex’s material conveying systems are designed for handling and conveying recovery boilers’ ash and ESP-dust.
Laitex’s ESP and ash conveyors
Electrostatic precipitators or ESP equipment recovers the fly ash and the pulp boiling chemicals while cleaning the airflow. The particles from a gas stream are electrically charged positively or negatively and attracted to collector plates carrying the opposite charge. Scraper conveyors scrape the solid ESP ash on the ESP ash conveyors, which recycle the ash and chemicals back to the pulp process via mixing tank.
For collecting flue gases and conveying ESP ash, Laitex designs and supplies ESP equipment conveying systems. Even one of the world’s largest recovery boilers relies on our reliable and efficient systems.
The ash left at the bottom of the recovery boilers is utilized in later processes and therefore reclaimed. Laitex’s dust proof Chain Conveyors and Rotary Feeders are robust solution for conveying hot ash from several recovery boilers into a mixing tank.
Conveying in extreme conditions
The unique combination of technology house and workshop enables the flexible and agile delivery of great solutions. Our long-lasting equipment is designed to work flawlessly at high capacity in extreme conditions. However, long experience and knowledge of different materials is behind every robust equipment we supply.