Efficient Disc Vacuum Filter Machine
Product Introduction
Working Principle
The filter discs rotate at a constant slow speed while partially submerged in the slurry tank, and each filter sector continuously passes through three working zones in sequence:
Suction Filtration Zone (Submerged in Slurry)
The distribution head connects to vacuum, creating a negative pressure difference inside and outside the filter sector. Solid particles in the slurry adhere to the surface of filter cloth to form filter cakes. The filtrate passes through the filter cloth, filter sectors and filtrate pipes before being discharged via the distribution head.
Dewatering Zone (Above Liquid Level)
After leaving the slurry, the filter sectors remain under continuous vacuum suction to remove free water from filter cakes, greatly reducing the moisture content of cakes.
Discharge Zone (High Position)
The distribution head cuts off vacuum and feeds low-pressure back-blow air to slightly inflate the filter cloth. Combined with scrapers, dry filter cakes are completely stripped off and fall onto the belt conveyor below. Afterwards, the filter cloth is cleaned to start the next working cycle.
Main Application Scenarios
Metal Mines (Core Application) Ideal for high-specific-gravity, easily-settling slurry with 200–400 mesh particles, including iron concentrate, copper concentrate, sulfur concentrate, titanium concentrate, tungsten, molybdenum, lead-zinc concentrate and metal tailings dry discharge.
Non-Metallic Mines Dewatering of quartz sand, potassium feldspar, kaolin, fluorite powder and ground calcium carbonate powder. Stainless steel anti-contamination model is available for customization.
Coal Washing Industry Dewatering of clean coal and coal slime (suitable for light materials with slurry concentration of 20%–40%).
Environmental Protection & Chemical Industry Solid-liquid separation of mineral processing sludge and industrial fine particle slurry. Anti-corrosion customization is available for highly corrosive media.
Simple comparison with similar devices
· ·Compared with ceramic filter ZPG disc vacuum filter features lower cost, easier maintenance and cheaper filter cloth replacement. Ceramic filters deliver lower cake moisture, yet they come with high procurement and maintenance costs and are prone to pore blockage.
· · Compared with chamber filter press ZPG filter can operate automatically 24 hours continuously without intermittent cake discharge. Filter presses work in batches and occupy larger floor space, but perform better in treating ultra-high concentration materials.
· · Compared with drum vacuum filter Disc filters offer larger effective filtering area per unit floor space, higher throughput and superior dewatering effect for fine particles.
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Main product categories
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