30results about How to "Increase filter surface area" patented technology

The invention relates to an integral dust-removal filtering bag with an internal and external filtering double-bag sleeve structure. The dust-removal filtering bag comprises filter bags and a cage skeleton supporting the filtering bags. The dust-removal filtering bag is characterized in that the cage skeleton is composed of an inner bag cage skeleton (2) and an outer bag cage skeleton (1); the upper end and the lower end of the outer bag cage skeleton are respectively provided with an upper positioning mounting plate (13) and a lower positioning mounting plate (10); the filtering bags includes an inner filtering bag (8) and an outer filtering bag (7); the inner filtering bag (8) and the outer filtering bag (10) are assembled into an integral structure through the upper positioning mounting plate (13) and the lower positioning mounting plate (10); the inner filtering bag (8) is parallel with the outer filtering bag (7), and the upper part of the inner filtering bag (8) is lower than the outer filtering bag while the bottom part of the inner filtering bag (8) is as high as the bottom part of the outer filtering bag (7); and the inner filtering bag and the inner bag cage skeleton (2), the outer filtering bag (7) and the outer bag cage skeleton (1) are designed to be circular and rectangular, also can be square. The filtering bag has the advantages of reasonable technical structure, high efficiency and small device volume, the cost is saved; especially, since the upper part of the inner filtering bag (8) is lower than the outer filtering bag (7), under the condition of ensuring the increase of filtering surface area of the inner filtering bag (8), the filtering bag has the characteristics of saving space and being convenient for removing dust.

The invention relates to an inner and outer filtering double-bag integrated dust removal filtering bag which comprises a filtering bag and a cage skeleton for supporting the filtering bag. The integrated dust removal filtering bag is characterized in that the cage skeleton consists of an inner bag cage skeleton (2) and an outer bag cage skeleton (1); an upper positioning and installing disc (13) and a lower positioning and installing disc (10) are respectively arranged at the upper end and the lower end of the outer bag cage skeleton (1); the filtering bag consists of an inner filtering bag (8) and an outer filtering bag (7); the inner filtering bag (8) and the outer filtering bag (7) are designed into an integrated structure and can be assembled by the upper positioning and installing disc (13) and the lower positioning and installing disc (10); the inner filtering bag (8) is parallel to the outer filtering bag (7); the upper part of the inner filtering bag (8) is higher than that of the outer filtering bag (7); the bottom part of the inner filtering bag (8) is equal to that of the outer filtering bag (7); and the inner filtering bag (8) and the inner bag cage skeleton (2) as well as the outer filtering bag (7) and the outer bag cage skeleton (1) are deigned to be circular and rectangular and also can be square. The integrated dust removal filtering bag has a reasonable and technological structure and low cost; and in particular, as the upper part of the inner filtering bag (8) is higher than outer filtering bag (7), the integrated dust removal filtering bag has the characteristics of larger filtering area, high efficiency, small equipment volume, low cost and the like.

This invention relates generally to filtration cassettes, and, more particularly to methods of fabricating cross-flow filtration cassettes. Cassettes of the invention are characterized, in part, by a series of sealing channels which selectively seal the filtrate and retentate ports to prevent undesired flow. The sealing channels have formed barriers on either side thereof which create side-walls for precisely controlling the flow of the sealant during the cassette formation. Filtration cassettes of the present invention can be manufactured from conventional membrane and flow screen components and can utilize both injection molding and vacuum assisted resin transfer molding fabrication processes.

A filter unit for use in a casing disposed in a septic tank comprising a plurality of stacked filter plates. The individual filter plate is preferably substantially “D” shaped in circumference and has a substantially cone-shaped floor, tapering upward. The filter plates are preferably stacked in a superposed, spaced-apart manner with a particular diameter in relationship to the inner diameter of the case. The filter plates are preferably inserted into the filter case to define a seal horizontally around the bottom opening in the case, thereby allowing wastewater to enter into the filter plates to begin the filtering process. Solids preferably flow upward into the filter plates, where they are separated by size with a predetermined gap in the stacked filter plates.

The invention discloses a nut-mounted filtering barrel, which includes a filtering barrel body. The bottom of the filtering barrel body is provided with a seal structure bottom cover, and the top of the filtering barrel body is provided with a top cover, the axial center position of which is provided with a connecting pipe connected to the filtering barrel body. The surface of the filtering barrel body is equipped with several rows of concave-convex grooves in vertical arrangement, and the concave-convex grooves are internally provided with a filtering membrane. The nut-mounted filtering barrel provided by the invention has the advantages of convenient installation and good filtering effect, and even more has a double filtration function.

An air filter including a base and a first and second frame element is disclosed. Each frame element is coupled to the base. The frame elements have an oscillating shape having a first portion relatively close to the base and a second portion relatively farther from the base. A filter element generally follows the oscillating shape of the frame elements. An air filter system is also disclosed. The air filter system can include the air filter and an air filter container. The air filter container contains the air filter and directs air through the air filter in a predetermined direction. An air filter is disclosed including a support structure and an oscillating shaped filter element attached to the support structure. The oscillating shape increases the air filter surface area for a given volume.