The disclosed technology regards a wet dust extractor system with a water/solids separator for filtering slurry from the extractor into residue cakes and filtrate water, and related methods of removing dust from an industrial environment and dewatering resulting sludge. The wet dust extractor system has an air inlet, an impeller fan, and an extraction panel. Water is injected at the inlet of the fan impeller, where it is spun with the incoming dust laden air; the resulting slurry then passes to the extraction panel, which removes the slurry from the system by means of a discharge sump. The slurry then is pumped or otherwise delivered to the separator for filtering slurry into residue cakes and filtrate water. The separator includes a frame supporting a plurality of rollers supporting a filter media belt, a plurality of blades and wipers for cleaning the rollers and removing excess filtrate water and cake material, and an inlet water manifold to distribute slurry water uniformly on the filter media belt. The frame supports a filter bed, with a slurry receiving area having a perforated panel at its base, for receiving, pre-filtering and moving the slurry through the separator, and a filter bed collection tub with an exit aperture for collecting and delivering filtrate to a water holding tank. The filter media belt traverses the plurality of rollers, through and about the filter bed, supported along a portion of its path by the perforated panel. Both a residue cake bin and a clean water holding tank may be provided with the system to collect residue and filtrate water, respectively, for re-use or disposal.

The invention relates to a conveyor belt filter device for mechanically cleaning a liquid which flows through a channel and is polluted with solids, comprising an endless filter belt of interconnected flat filter elements which can be pivoted against one another, and a flexible driving means which is guided over a lower deflection device and at least one upper deflection device and comprising a framework which carries the deflection devices and the filter belt, wherein in the area of the upper deflection device a wiper device is arranged which can be driven to rotate and is arranged on a swinging link which is mounted on the framework, the wiper device being supported against the weight of the wiper device by a support device, and the support device being arranged together with the upper deflection device on a common carrier which is adjustable with respect to the framework.

A filtration system for filtering a liquid includes a drum filter (2) having a primary inlet (4) and a primary outlet (6) in a housing (8), and a rotatable drum screen (10) arranged in the housing. A back flush element (12) is arranged on one side of the drum filter for back flushing filtered particles from the drum screen, and a gutter element (14) is arranged on an opposite side of the drum screen for collecting filtered particles, wherein the gutter element is connected to a secondary outlet (16) in the housing. The filtration system is furthermore provided with a buffer reservoir (18) having a reservoir inlet (20) which is connected to the secondary outlet so as to be closable. The filtration system further includes compression elements (34) for controlling a gas pressure (P.sub.t) in the housing of the drum filter and a gas pressure (P.sub.r) in the buffer reservoir.

A filtration system for filtering a liquid includes a drum filter (2) having a primary inlet (4) and a primary outlet (6) in a housing (8), and a rotatable drum screen (10) arranged in the housing. A back flush element (12) is arranged on one side of the drum filter for back flushing filtered particles from the drum screen, and a gutter element (14) is arranged on an opposite side of the drum screen for collecting filtered particles, wherein the gutter element is connected to a secondary outlet (16) in the housing. The filtration system is furthermore provided with a buffer reservoir (18) having a reservoir inlet (20) which is connected to the secondary outlet so as to be closable. The filtration system further includes compression elements (34) for controlling a gas pressure (P.sub.t) in the housing of the drum filter and a gas pressure (P.sub.r) in the buffer reservoir.

The invention relates to a device and a method for filtering viscous or highly viscous liquids, in particular plastics melts, using an oscillating filter plate.

The invention relates to a device and a method for filtering viscous or highly viscous liquids, in particular plastics melts, using an oscillating filter plate.

A tumbler may be used as defluidizer, dryer, coater, classifier, or dynamic filter. The tumbler includes a rotatable drum that receives a solid/fluid slurry through an inlet chute. As the slurry travels through the drum, fluid exits the drum through a plurality of apertures in screens attached to the sides of the drum, while the solids continue along the drum's length until they reach one or more openings and exit the drum into an outlet chute. The outlet chute includes ridges that wrap around rings extending from the openings of the drum to prevent solids from escaping the outlet chute. To further dry the solids before they exit the drum, an air tube at least partially disposed within the drum is configured to introduce a flow of air into the drum.

A tumbler may be used as defluidizer, dryer, coater, classifier, or dynamic filter. The tumbler includes a rotatable drum that receives a solid/fluid slurry through an inlet chute. As the slurry travels through the drum, fluid exits the drum through a plurality of apertures in screens attached to the sides of the drum, while the solids continue along the drum's length until they reach one or more openings and exit the drum into an outlet chute. The outlet chute includes ridges that wrap around rings extending from the openings of the drum to prevent solids from escaping the outlet chute. To further dry the solids before they exit the drum, an air tube at least partially disposed within the drum is configured to introduce a flow of air into the drum.

A portable fluid filtering apparatus includes a debris chamber having an exhaust port; a rotor that draws in a fluid from outside the debris chamber to the exhaust port; a filter positioned between the exhaust port and the rest of the debris chamber; an intake port in fluid communication with the debris chamber and wherein the rotor draws the fluid into the debris chamber through the intake port; and a drive system configured to rotate the rotor that includes a drive shaft connected to the rotor, a motor to rotate the drive shaft, and a power source for the motor.

A portable fluid filtering apparatus includes a debris chamber having an exhaust port; a rotor that draws in a fluid from outside the debris chamber to the exhaust port; a filter positioned between the exhaust port and the rest of the debris chamber; an intake port in fluid communication with the debris chamber and wherein the rotor draws the fluid into the debris chamber through the intake port; and a drive system configured to rotate the rotor that includes a drive shaft connected to the rotor, a motor to rotate the drive shaft, and a power source for the motor.