Abstract:
A fluid treatment arrangement includes a tube sheet (30) and a plurality of fluid treatment elements (60) sealed to the tube sheet (30). The fluid treatment arrangement is designed so that the fluid treatment elements (60) can be easily unsealed and removed from the tube sheet (30). According to one form of the invention, the arrangement may include an ejector mechanism (90) movable with respect to the tube sheet (30) into and out of contact with the fluid treatment elements (60). When the ejector mechanism (90) contacts the fluid treatment elements it can exert an axial force on the fluid treatment elements (60) to produce relative movement between the fluid treatment elements (60) and the tube sheet (30) by a sufficient distance to unseal the fluid treatment elements (60) from the tube sheet (30), making it easy to remove the fluid treatment elements (60) from the tube sheet (30). In preferred embodiments, the fluid treatment elements (60) comprise filter elements.
Abstract:
A separation assembly includes a separation element disposed in a reusable cage. The separation element preferably has a pleated pack with the pleats in a laid-over pleat configuration and two end caps. One of the two end caps is expandable or slidable between a first position and a second position for reducing the forces acting upon the separation element while maintaining a fluid tight seal when the separation element is under the influence of these forces. The application also concerns elongated hollow separation elements which are formed on the one hand of a single hollow pleated pack, on the other hand of adjoining pack sections. It further deals with the arrangement and maintaining of the pleats of the porous medium of the separation element. 00000
Abstract:
A method of filtering solids from the effluent from a wastewater collection container (10) such as a septic tank is disclosed. A mesh screen filter (44) is immersed in wastewater having a concentration of waste solids which have been allowed to distribute into a scum layer (16) and a sludge layer (14) with a horizontal layer (18) of liquid therebetween. The filter (44) is surrounded with a housing (12), and the interior surface of the housing is exposed to the horizontal layer (18) of liquid through a plurality of apertures (30) in the housing. Liquid from the horizontal layer (18) flows through the apertures (30) into the housing (12) and thereafter the liquid flows from one side of the filter (44) to an opposite side thereof through a mesh screen filtering surface area greater than the interior surface area of the housing. Thereafter, the liquid flows through a liquid effluent outlet (62) of the container (10). This filter is very efficient and consequently provides a high quality effluent, while resisting clogging and resultant collapse of the mesh screen surface area.
Abstract:
A method for filtering edible oils utilizing a backwashable filter assembly (10). A filter system having at least two filter assemblies (A, B) may be utilized to remove bleaching clay and/or nickel catalyst from oil being processed for human consumption. The filter assemblies may be connected in a tandem manner to provide continuous and uninterrupted filtering of the edible oil. Each filter assembly preferably comprises multiple, substantially cylindrical filter elements (18) having a porous filter medium which may be formed from polyaramid fibers. The filter elements are designed to withstand the elevated temperatures used in edible oil processing and for ease of cleaning during backwashing.
Abstract:
A filtration apparatus with a filtrate recovery device aims at shortening a period of time required for recovery of a stock solution in a tank, readily peeling sludge such as a filtration assistant or the like from filtration elements and discharging the same. After a pressurized water is introduced into a tank provided at upper and lower sides thereof with cylindrical-type filtration elements and plane-type filtration elements, respectively, to recover a stock solution as a filtrate, pressurized gases such as air and carbon dioxide are introduced from a side of the stock solution to discharge from the tank a water content remaining in the stock solution and to peel sludge from the respective filtration elements and discharge the same outside the tank.
Abstract:
The combustion (50) of a fuel-air mixture (52, 54) is used to provide a high-temperature and high-pressure pulse of gaseous combustion products (64, 66, 68) for the back-flush cleaning of ceramic filter elements (22, 24, 26) contained in a barrier filter system (18) and utilized to separate particulates from particulate-laden process gases at high temperature and high pressure. The volume of gaseous combustion products (64, 66, 68) provided by the combustion (50) of the fuel-air mixture (52, 54) is preferably divided into a plurality of streams (64, 66, 68) each passing through a sonic orifice (70) and conveyed to the open end (28) of each filter element as a high pressuse pulse which passes through the filter elements (22, 24, 26) and dislodges dust cake supported on a surface of the filter element.
Abstract:
A closed filter container (20) containing at least one filter cartridge (80) mounted on a plate (60), whose periphery (70) is clamped between the lid (40) and the rim (34) of said container electrically isolating said cartridge and plate from the walls including the lid of the container as disclosed in applicant Harms' prior U.S. Patent No. 3,720,322. Mounted between the plate and a wall of the container is at least one electrically conducting resilient finger (100) which maintains electrical contact across the gasket which isolates the plate and cartridges regardless of the flexing of the plate due to variations of pressure inside the container. The plate also is provided with three handle members (140) to facilitate removal of the plate and cartridges from the container. The three handle members also act as legs to stably support the plate and cartridges during replacement of the cartridges. Furthermore, these handles have improved configurations (142) for both ease in handling and strengthening.
Abstract:
A method of manufacturing a tube sheet by forming a plurality of separate thin tube sheet segments; forming multiple holes in each sheet in a predetermined pattern, each hole for accommodating a tube sheet filter tube; aligning all of the plurality of tube sheet segments so that the hole pattern of each sheet aligns with the hole pattern in all other sheets of the plurality of tube sheet segments; and securing all of the tube sheet segments together to form a unitary tube sheet. A tube sheet construction that includes a plurality of separate thin tube sheet segments, multiple holes being provided in each sheet in a predetermined pattern, each hole for accommodating a tube sheet filter tube, all of the tube sheet segments being aligning so that the hole pattern of each sheet aligns, and fasteners for securing all of the tube sheet segments together. A media layer is provided between adjacent sheet segments.
Abstract:
A method of manufacturing a tube sheet by forming a plurality of separate thin tube sheet segments; forming multiple holes in each sheet in a predetermined pattern, each hole for accommodating a tube sheet filter tube; aligning all of the plurality of tube sheet segments so that the hole pattern of each sheet aligns with the hole pattern in all other sheets of the plurality of tube sheet segments; and securing all of the tube sheet segments together to form a unitary tube sheet. A tube sheet construction that includes a plurality of separate thin tube sheet segments, multiple holes being provided in each sheet in a predetermined pattern, each hole for accommodating a tube sheet filter tube, all of the tube sheet segments being aligning so that the hole pattern of each sheet aligns, and fasteners for securing all of the tube sheet segments together. A media layer is provided between adjacent sheet segments.
Abstract:
A method of manufacturing a tube sheet by forming a plurality of separate thin tube sheet segments; forming multiple holes in each sheet in a predetermined pattern, each hole for accommodating a tube sheet filter tube; aligning all of the plurality of tube sheet segments so that the hole pattern of each sheet aligns with the hole pattern in all other sheets of the plurality of tube sheet segments; and securing all of the tube sheet segments together to form a unitary tube sheet. A tube sheet construction that includes a plurality of separate thin tube sheet segments, multiple holes being provided in each sheet in a predetermined pattern, each hole for accommodating a tube sheet filter tube, all of the tube sheet segments being aligning so that the hole pattern of each sheet aligns, and fasteners for securing all of the tube sheet segments together. A media layer is provided between adjacent sheet segments.