The customer’s objective was to modernize the TiO₂ suspension filtration node with the following requirements:
• increase operating capacity by approximately 15%,
• preserve the footprint of the existing installation,
• ensure reliable long-term operation in the demanding environment of a chemical plant,
• enable fast installation during the customer’s scheduled shutdown.
Initial Condition
The original technology consisted of an aging chamber membrane filter press from another manufacturer, whose technical condition no longer allowed:
• capacity increase,
• reliable operation without frequent service interventions.
At the same time, the new technology had to be fully adapted to the existing downstream and upstream equipment, without any possibility of expanding the available installation space.
Proposed Solution – ENVITES Technology
ENVITES designed and supplied a modern filtration unit:
✅ Chamber membrane filter press KHZ 1500/82
• Membrane squeezing pressure: 30 bar – high dewatering efficiency of the TiO₂ suspension
• Proven design solution specifically intended for TiO₂ filtration
• Newly developed sliding–rolling suspension of filter plates:
o reduced mechanical wear,
o optimized plate shifting system,
o improved operational reliability
• Structural resistance to:
o highly corrosive environment,
o increased dust load in operation
• Custom-designed compact layout respecting:
o the original dimensions of the technological space,
o existing connections to piping systems and downstream technologies.
Implementation
The installation was carried out without the need for major construction modifications to the filtration node.
After commissioning, the unit underwent comprehensive performance guarantee testing, which verified:
• guaranteed filtration capacity,
• stable operation,
• full process compatibility with the calcination process line.
Project Results
✅ 15% increase in filtration capacity while maintaining the original footprint
✅ Improved operational stability and filtration reliability
✅ Seamless integration of the new filter press into the existing process
Conclusion
In this demanding modernization project, all key requirements were met:
• high equipment durability,
• optimization within existing space constraints,
• operational reliability.
Thanks to the combination of proven design principles and innovative technical features, a solution was delivered that fully met the customer’s expectations.
