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 purification module is provided comprising a plurality of purification cartridges, a support for the cartridges, a manifold and a bowl. In one embodiment the support for the cartridges has two pitched partial screw threads on opposing surfaces which mate with pitched screw flights on the manifold when the partial screw threads are rotated into the screw flights. The support includes fluid passageways for directing filtered fluid from the filtration cartridges, through the support and into the manifold. In another embodiment, a purification module is provided comprising a purification cartridge, a manifold and a bowl. The purification cartridge has two pitched partial screw threads on opposing surfaces of the cartridge outlet which mate with screw flights on the manifold when the partial screw threads are rotated into the mating screw flights.

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.

A filter device is disclosed. The device includes at least one substantially flat filter media that may be encapsulated between non-permeable films. Some embodiments comprise ports for introducing a fluid to be filtered and for evacuating the filtered fluid. Various substrates may be employed therein in cooperation with the at least one filter media to enhance device performance. Also disclosed are various apparatuses configured to contain at least one filter device.

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.

The invention discloses a high-temperature filter material manufacturing technology for bag type dust removal. The manufacturing technology comprises the following steps: (1) mixing polyimide fiber and polyphenyl thioether fiber according to the weight ratio of (30-70) / (70-30), and manufacturing a 30-60 g / m<2 > filter material dust receiving surface layer through a spunlace technology; (2) compositing the filter material dust receiving surface layer through a needle punching technology on a pecie of polyphenyl thioether base cloth, and manufacturing the filter material needle grey cloth; (3) conducting calendering shaping on the filter material needle grey cloth; (4) conducting singeing easily-dedusting treatment on the dust receiving surface layer of the filter material needle grey cloth subjected to calendering; (5) impregnating the treated filter material needle grey cloth with an polytetrafluoroethylene emulsion. According to the manufacturing technology, the polyimide fiber is implanted into the filter material surface layer (dust receiving surface layer) through a composite method to improve the filterability of the filter material; because the polyimide fiber adopts a irregularly-shaped (leaf-shaped) section structure, so that the polyimide fiber has a very large filtering surface area, and excellent filterability; meanwhile, the pressed powder stripping quality is good when the soot cleaning is conducted, so that the dust is easy to remove, the dust cannot be infiltrated into the filtering cloth, and the filtration resistance can be reduced.

The invention provides a dust recovery device and a recovery method of hygiene products. The dust recovery device of hygiene products comprises a dust recovery device, wherein the dust recovery device comprises a left box body, a middle box body and a right box body which are arrayed in an assembly way; air outlets of air suction fans are communicated with the left box body; a dust collection device is arranged in the middle box body, the dust collection end of the dust collection device stretches into the right box body and extends to the position between two adjacent filtering devices, a dust collection fan is arranged outside the middle box body, and one end of the dust collection fan is connected with the dust collection device, and the other end of the dust collection fan is communicated with a dust box; and multiple layers of filtering devices are horizontally arranged in the right box body in a sleeving way, air outlets are arranged on right sides of the filtering devices, and the air outlets are used for being communicated with the inner parts of the filtering devices and the outside. According to the invention, as the multiple layers of filtering devices are adopted, the filtering area is large; the internal and external pressure difference of the dust recovery device is small, so that villi in the dust are not damaged easily; and the recovered dust is collected rather than being used directly, so that the impurities in the dust is prevented from influencing the subsequent product quality.