The equipment for the filtration of a suspension uses a rotary filter with a precoat. The equipment includes a filtration unit for the implementation of the rotary filter and a coating unit for coating the rotary filter with the precoat. The coating unit is independent of the filtration unit.

The present invention provides a multi-structure filtration device for filtering, separating, and dehydrating foreign substances in water, the multi-structure filtration device comprising: a filtration tank filled with filtration target fluid inside; a filtration device unit having a cylindrical double drum structure, installed in the filtration tank so that a part of the filtration device unit is submerged in the filtration target fluid, and including two or more filters having different mesh sizes that are respectively wound on an inside and an outside of the filtration device unit, and one or more washing modules washing foreign substances attached to the filter wound on an outside of the filtration device unit. Accordingly, the multi-structure filtration device can have excellent filtration performance by double-filtering the target fluid using two or more filters, can operate in an eco-friendly manner by recycling filtered water and effectively washing the filters using the filtered water without separate chemicals, can increase the durability of the filters, and can reduce the washing and processing cost by reusing the filters.

A device for filtering liquids includes a tank, a tank inlet for introducing a liquid to be filtered into the tank, a tank outlet for a retentate, and at least one rotor rotatably drivable around a tank axis, the at least one rotor having a hollow shaft supported in an end wall and attached thereto a support device for filter elements arranged at a distance from the tank axis, the filter elements being fluidically connected to the hollow shaft for discharging a filtered permeate from the tank, wherein an inner lateral surface of the tank comprises at least one guide for diverting the liquid toward the filter elements. At least one of the at least one guide forms a receptacle for at least one conditioning device for adjusting process conditions.

A device for filtering liquids includes a tank, a tank inlet for introducing a liquid to be filtered into the tank, a tank outlet for a retentate, and at least one rotor rotatably drivable around a tank axis, the at least one rotor having a hollow shaft supported in an end wall and attached thereto a support device for filter elements arranged at a distance from the tank axis, the filter elements being fluidically connected to the hollow shaft for discharging a filtered permeate from the tank, wherein an inner lateral surface of the tank comprises at least one guide for diverting the liquid toward the filter elements. At least one of the at least one guide forms a receptacle for at least one conditioning device for adjusting process conditions.

A wastewater filter conversion kit for replacing filter elements connected to a shaft includes first and second conveyor segments. Each conveyor segment includes a perforated panel. At least one first tube is secured to a first end of the panel. At least one second tube is secured to a second end of the panel. The least one first tube on the first conveyor segment and the at least one second tube on the second conveyor segment are aligned along a common centerline for receiving the shaft to replace the filter elements on the shaft.

A fluid filter device and method of using the same are disclosed. The filter device may include a casing including a first face, a second face and at least one lateral face positioned between the first face and the second face and perpendicular thereto. The filter device may include at least two elongated pulleys rotatably supported within the casing between the first face and the second face of the casing. The filter device may include a filtering mesh threaded on at least some of the elongated pulleys to define an interior of the filtering mesh. The elongated pulleys and locations thereof within the casing are adapted to arrange the filtering mesh into a predetermined shape and to enable rotation of the filtering mesh about the at least some of the elongated pulleys.

A method of continuous filtration of contaminants from a contaminated viscous fluid, the method may include: pumping the contaminated viscous fluid between a non-perforated surface being a first cylinder and a second perforated surface being a second cylinder disposed substantially parallel to each other at a defined first gap, moving the non-perforated surface and the perforated surface with respect to each other includes one or more longitudinal fins protruding from second cylindrical body into the first gap towards the perforated surface of the first cylindrical body thereby forming a second gap between the distal tips of the fins and the perforated surface, thereby forcing movement of the contaminated viscous fluid in a direction substantially parallel to the relative speed thereby generating a shear rate in the contaminated viscous fluid near the perforated surface in the direction substantially parallel to the relative speed.

A method may include providing a rake system with a framework, a chain having a plurality of skimmers, an elongated rail, a first support arm, a second support arm, a first guide device, a second guide device, and/or a screen, rotating the chain, receiving debris between the chain and the screen, and/or moving the debris along the screen, via a skimmer of the plurality of skimmers, to discard the debris.

A filtering device and a tableware washing apparatus, the filtering device includes a rotary filter and a drive assembly. The rotary filter includes a columnar filtering screen configured to filter water from a washing process of the tableware washing apparatus; wherein a diameter of an external circle defined by each mesh of the columnar filtering screen is between 0.2 to 0.5 mm. The drive assembly is connected to the rotary filter and configured to drive the columnar filtering screen to rotate relative to contents within the columnar filtering screen at a relative speed of 100 to 1000 r/min, for separating at least a portion of residue on the columnar filtering screen from the columnar filtering screen.

A drilling mud remediation and drilling cutting treatment device and method. There are three main components: a vacuum liquid solid separator; a pelletizer; and an induction furnace. The liquid solid separator has a seamless filter belt configured to carry a mixture of liquids and solids over a vacuum. A slurry comprised of drilling mud and cuttings is deposited on the filter belt. An applicator ensures that the slurry is deposited evenly across the entire filter belt at a uniform thickness. The vacuum removes most of the liquids for further treatment and reuse. The solids are transferred to a pelletizer which compacts them into relatively uniform pellets while removing much residual liquid. The pelletized cuttings are then passed through an induction furnace, which removes any residual liquids, renderings the cuttings safe for disposal.