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High vacuum filter dewaters slurries
Centrifugal Glacier Filter Products have developed what they describe as a “revolutionary” new oil filter, and maintain that its introduction will will mean lower servicing costs and reduced down-time on the new Massey Ferguson 4200 Series tractors. Glacier Filter Products report that for the first time, a centrifugal oil filter has been fitted to the transmission of a tractor as original equipment. The centrifugal cleaners which are already
oil filter cuts tractor servicing costs
commonly found in truck industrial and marine engine applications, need servicing at only 1000 hr intervals, as compared to a conventional filter which needs servicing approximately every 250 hr. The transmission oil life has also been extended to 1000 hr. Glacier also state that fewer oil changes, together with the fact that the filter is serviced rather than replaced also means that centrifugal filters have environmental benefits.
The operation of the centrifugal filter is simple. Pressurised oil if fed through a spindle into a cylindrical rotor, and expelled through angled nozzles in the rotor base. The oil exiting the nozzles causes the rotor to spin at high speed and contaminant particles are spun out of the oil centrifugal force, to form a dense, hard cake on the inner wall of the rotor. Conventional filters work only on particles
above a certain size, commonly 15 to 25 ttm, and become less efficient as the filter clogs. The centrifugal filter is dependent on the relative density of particles in the oil and can be effective down to sizes less than 1 urn with no loss of performance between services. The Glacier Metal Co. Ltd, Filter products Division, Winterhay Lane, IIminster, Somerset TA19 9PH, UK. Tel: +44 7460 53221, fax: + 44 1460 5559.
RotoClone collects hot, sticky dusts The Type W RotoClone from AAF International is designed to collect hot, light, sticky dusts that would normally clog fabric type dust collectors. These dusts are generated by a number of industries including: the chemical, pharmaceutical, plastics, paper, ceramics, and food processing manufacturers. Typical applications include material handling, mixing, spraying, crushing, grinding, cookers, packaging, and ventilation. The RotoClone combines the principle of dynamic precipitation with water sprays. The spray maintains a flowing film of water on all collecting surfaces which minimizes water requirements, traps even the lightest and finest dust particles, and delivers collected dust in slurry form for easy disposal. The RotoClone is factory-assembled, tested, shipped in sub-assemblies and AAF maintain that it is convenient to handle and easy to install. According to the manufacturer, water
consumption is limited to just a small amount required to maintain a flowing film approximately one-half gallon of water
per 1,000 CFM of air cleaned. The RotoClone is available in sizes ranging from 1,000 to 50,000 CFM of air.
AAF International, 215 Central Avenue, PO Box 35690, Louisville KY 402325690, USA. Tel: + 1 502 637 0348; fax: + 1 502 637 0349.
High vacuum filter &waters slurries A new, patented technology based on deep vacuum filtration applied to a wedgewire screen drum is now available from Texas based company Nagaoka. According to Nagaoka, this unit is ideal for dewatering or deliquefying slurried streams or effluent streams that are sludge-like in nature. These can be from unit operations
(such as crystallizers or precipitation units), organic or inorganic solids-containing product streams, waste or effluent streams, water works, sewage, power plant sludges, drilling and production sites, or sludge from construction sites. At the heart of the unit is a mixed-air jet pump (MJP) which increases fluids velo-
city (and dewatering rates) by introducing an air jet to create a high pressure liquid stream which induces a high vacuum. The vacuum creates a strong suction force across the wedge wire screening device that leads to dehydration. The solids being handled can be hard or soft. This MJP screen drum operates continuously; it is
compact, and is a highly efficient way to remove solids from liquids. The equipment can be used to capture either a solid product or a liquid product or both. It is also designed for handling either industrial or municipal waste. Nagaoka, 11943 FM 529, Houston, TX 77041, USA. Tel: +1 713 937 1590; fax: + 7 713 937 8018.
oil filter cuts tractor servicing costs
commonly found in truck industrial and marine engine applications, need servicing at only 1000 hr intervals, as compared to a conventional filter which needs servicing approximately every 250 hr. The transmission oil life has also been extended to 1000 hr. Glacier also state that fewer oil changes, together with the fact that the filter is serviced rather than replaced also means that centrifugal filters have environmental benefits.
The operation of the centrifugal filter is simple. Pressurised oil if fed through a spindle into a cylindrical rotor, and expelled through angled nozzles in the rotor base. The oil exiting the nozzles causes the rotor to spin at high speed and contaminant particles are spun out of the oil centrifugal force, to form a dense, hard cake on the inner wall of the rotor. Conventional filters work only on particles
above a certain size, commonly 15 to 25 ttm, and become less efficient as the filter clogs. The centrifugal filter is dependent on the relative density of particles in the oil and can be effective down to sizes less than 1 urn with no loss of performance between services. The Glacier Metal Co. Ltd, Filter products Division, Winterhay Lane, IIminster, Somerset TA19 9PH, UK. Tel: +44 7460 53221, fax: + 44 1460 5559.
RotoClone collects hot, sticky dusts The Type W RotoClone from AAF International is designed to collect hot, light, sticky dusts that would normally clog fabric type dust collectors. These dusts are generated by a number of industries including: the chemical, pharmaceutical, plastics, paper, ceramics, and food processing manufacturers. Typical applications include material handling, mixing, spraying, crushing, grinding, cookers, packaging, and ventilation. The RotoClone combines the principle of dynamic precipitation with water sprays. The spray maintains a flowing film of water on all collecting surfaces which minimizes water requirements, traps even the lightest and finest dust particles, and delivers collected dust in slurry form for easy disposal. The RotoClone is factory-assembled, tested, shipped in sub-assemblies and AAF maintain that it is convenient to handle and easy to install. According to the manufacturer, water
consumption is limited to just a small amount required to maintain a flowing film approximately one-half gallon of water
per 1,000 CFM of air cleaned. The RotoClone is available in sizes ranging from 1,000 to 50,000 CFM of air.
AAF International, 215 Central Avenue, PO Box 35690, Louisville KY 402325690, USA. Tel: + 1 502 637 0348; fax: + 1 502 637 0349.
High vacuum filter &waters slurries A new, patented technology based on deep vacuum filtration applied to a wedgewire screen drum is now available from Texas based company Nagaoka. According to Nagaoka, this unit is ideal for dewatering or deliquefying slurried streams or effluent streams that are sludge-like in nature. These can be from unit operations
(such as crystallizers or precipitation units), organic or inorganic solids-containing product streams, waste or effluent streams, water works, sewage, power plant sludges, drilling and production sites, or sludge from construction sites. At the heart of the unit is a mixed-air jet pump (MJP) which increases fluids velo-
city (and dewatering rates) by introducing an air jet to create a high pressure liquid stream which induces a high vacuum. The vacuum creates a strong suction force across the wedge wire screening device that leads to dehydration. The solids being handled can be hard or soft. This MJP screen drum operates continuously; it is
compact, and is a highly efficient way to remove solids from liquids. The equipment can be used to capture either a solid product or a liquid product or both. It is also designed for handling either industrial or municipal waste. Nagaoka, 11943 FM 529, Houston, TX 77041, USA. Tel: +1 713 937 1590; fax: + 7 713 937 8018.