Filtration of melt

Our company designs, manufactures and supplies filtration units with different types of heating system.

Benefits of filtration units:

Quick start of casting and maximum use of effective surface of the ceramic foam filter due to its convection preheating with hot air
High speed of cartridge and ceramic foam filter warming-up
Maximum use of the effective surface of the ceramic foam filter due to convective preheating with hot air or combustion products
Possible application of phosphate-free ceramic foam filters
Preheating of melt during casting in filtering boxes with electrical heating system

Advantages of our products:

Possible uniform heating of two-stage filters to a temperature of 650-700⁰C

Quick warming-up. gas filters: single-stage 20 min., two-stage 30 min. single-stage electric filters 60 min.

The flexibility of technological modes settings for solving specialized customer’s tasks using several methods of heat transfer in combined heating systems

Convenience and safety of the operating personnel during the use of filter covers

Special design for operation in rough conditions: at high dust conditions, polluted air and low quality of electrical power

Unification of the automated control system: PLC and HIM based

This design is resistant to mechanical damage and almost completely excludes insulation fibers and shell fragments impurities in the melt. Three months of operation proved that there are no traces of the shell, mesh or internal insulating filler destruction. Mats tightly adhere to upper clamping plates of the metal track. Read...
Test Certificate of dust sheet heat insulating mat in Casthouse No 1, Casting Unit PNG-2 issued on 26.04.2018, RUSAL Sayanogorsk, JSC. Project of 2017
Practice has shown that preliminary heating ensures faultless start of casting and ceramic foam filter filtration throughout the whole area. Specifically, it is worth noting the simple and efficient heating system that enables to protect heating elements from excessive heat exposure and their further breakdown. The service life of heating elements increases considerably... In the course of operation, the covers' design proved to be convenient, balanced, and good serviceability. The steady-state compressed air cooling system has high reliability to minimize the human factor. Solutions of the kind can be duplicated to heat filters and chutes in other units. Read...
Extract from the Reference on the supply of two sets of twinned aluminium filtration units UFP - 15 (УФП -15). RUSAL Bratsk, PJSC in Shelekhov, 2017

Structural Design

Possible design of filter box chambers for 10-23″ filters:

Straight-through
Twin
By-pass
Double filtration

Heating system options:

Without a heating system
With radiation heating system (filter box cover radiating surface always faces down)
With convection heating system (air blowing/vacuuming tool and hot air gun are used for blowing)
With combined heating system (radiation and convection heating)