Continuous Vacuum Belt Filter Unit for Phosphoric Acid Complex
Coromandel Agro-Chemicals Industries
Agrochemicals & Fertilizers
Separation & Filtration
3 Machinery Types
Continuous Vacuum Belt Filter Unit for Phosphoric Acid Complex
The client required replacement of an outdated rotary vacuum filter with an energy-efficient horizontal vacuum belt filter to process corrosive calcium sulfate dihydrate (gypsum) in a phosphoric acid synthesis plant.
Metzix engineered a 45 sq. meter effective filtration area Horizontal Vacuum Belt Filter manufactured with 904L stainless steel wetted surfaces and polypropylene drainage grid trays. Three-stage counter-current wash zones maximized P2O5 recovery efficiency.
The commissioned filter unit delivers continuous, uninhibited filtration with minimal wash liquor volume, boosting plant overall chemical recovery.
The Engineering Challenge
Severe chemical corrosion from hot phosphoric and sulfuric acid mixtures, combined with high crystallization rates demanding continuous wash.
The Metzix Solution
Super-austenitic 904L stainless steel construction, rubber carrier belt with vulcanized curbed edges, and multi-stage spray manifolds.
Key Results & Performance Metrics:
- P2O5 chemical washing efficiency elevated to 99.2%
- Gypsum cake moisture dropped below 18% for direct fertilizer byproduct sale
- Maintenance intervals extended by 40% compared to legacy rotary drum units
- 100% compliant with industrial occupational safety standards
Products & Equipment Supplied
Horizontal Vacuum Belt Filter (45 m²) ↗
904L stainless steel frame with low-friction roller support vacuum box.
Corrosion-Resistant Pumping Solutions ↗
Special alloy centrifugal pumps for hot phosphoric acid filtrate circulation.
Acid-Duty Pinch Valves ↗
PTFE/FKM lined pneumatic isolation valves for corrosive slurry lines.
Coromandel Agro-Chemicals Industries
Delivered in Andhra Pradesh, India. Fully commissioned according to ISO 9001 quality guidelines.
Request Project ConsultationProject Site & Equipment Gallery
Visual documentation showing site assembly, delivered equipment components, and operational machinery.
