摘要:
Filter cartridges (1) of the type made from a sheet (3) of filter paper (5) pleated as an accordion (7) on a cylindrical surface. It essentially comprises the pinching by pairs (9, 10), (10, 11) of the contiguous pleats at various levels (p1, p2, p3, s1, s2) in order to make on the outer surface of the cartridge (1) a plurality of honeycombs (21). The invention enables to substantially prolonge the life duration of filter cartridges (1). Amongst the most interesting applications of the invention, the regeneration of solvents of washing bath for dry cleaning machines and the filtration of air for internal combustion engines as well as water filtration may be mentioned.
摘要:
Filtering device where a fixed guiding structure (11) can receive a sliding element (12) comprising filtering means (21) which come to be placed in succession in the plastic flow. The entry (22) and exit holes (23) of the plastic are greatly reduced in comparison to the diameter of the filtering means (21). Between said holes (22 and 23) and the filtering means (21), an entry cone (26) and an exit cone (27), having an opening angle alpha between 60 and 89 , preferably 80 , are foreseen. The sliding element (12) is made up by two opposite half shells (18, 19) between which the filter holding plate (20) and the filtering means (21) are inserted. The latter can be fitted with a peripheral edging, of lead or other material having a coefficient of thermal expansion higher than the steel's. Between the two half shells a gasket (28) (for instance in steel) supported by a material whose coefficient of thermal expansion is higher than the steel's, can also be foreseen.
摘要:
Dieser Druckfilter besteht aus zwei oder mehreren Einzelrohren (1), in denen jeweils ein Filterelement (2) angeordnet ist und die mit ihrem unteren offenen Ende in einen gemeinsamen Abschluß (3) münden, wobei der Abschluß (3) über einen Stutzen (5) mit der Eintrittsleitung und die Filterelemente (2) mit der Austrittsleitung (6) für die zu filtrierende Flüssigkeit verbunden sind.
摘要:
A filtering case (1, 30) is comprised of two superimposed parts, respectively an upper one (2, 31) and a lower one (43, 32), which slide telescopically the one within the other. The upper part (2, 31) bounds a slurry receiver chamber (2a, 51) and has an apertured (4, 61) bottom wall (8, 40a); the lower part (3, 32) is guided through the aperture (4, 61) between a first position outside the slurry receiver chamber (2a, 51) and a second position at least partway inserted thereinto. The lower part (3, 32) has filter-forming side walls whereby the overall filtering area of the case (1, 30) increases with the depth of penetration of the lower part (3, 32) into the slurry receiver chamber (2a, 51).
摘要:
Apparatus is disclosed for filtering melted plastic used in an injection molding system. The apparatus consists of a housing (12) having an inlet (18) and outlet with a cylindrical inner chamber (21) disposed in alignment therebetween, and a tubular filter element (13) threadably mounted in the internal housing. To avoid loosening of the filter element (13), a plurality of spiral surfaces (34, 42) are formed in the filter element (13) that are exposed to the pressurized flow of melted plastic, generating a resultant force that tends to screw the filter element (13) tighter onto its threaded mount (22). The threaded mount (22) is at the inlet end of the tubular element (27), causing it to extend in cantilever fashion axially into the internal chamber (21) and toward the outlet. This creates an annular discharge passage around the filter element (13) that is unobstructed, permitting the filtered plastic to converge smoothly into the outlet.
摘要:
Die Vorrichtung weist eine Aufnahmekammer (2) für den Schlamm auf, der über einen Stutzen (2) mittels einer Druckerhöhungspumpe zugeführt wird. Die Aufnahmekammer (2) ist an einem Stirnende mit einer Entleerungsöffnung versehen, die mittels eines Deckels (4) verschlossen werden kann. In der Längsrichtung der Aufnahmekammer erstrecken sich Filterkerzen (7), die aus einem nichtrostenden Stahl gefertigt sind und über ihre gesamte Länge einen konstanten Außendurchmesser aufweisen. Den Filterkerzen ist eine Abstreiferscheibe (23) zugeordnet, die sich über den gesamten lichten Querschnitt der Aufnahmekammer erstreckt und an der Innenfläche der Aufnahmekammer geführt ist. Diese Abstreiferscheibe ist mit Durchsteckkanälen für die Filterkerzen (7) ausgerüstet. Die Abstreiferscheibe ist mit einem Preß-Schiebesitz auf den Filterkerzen (7) gelagert und kann zum Abstreifen des entwässerten Schlammkuchens relativ zu den Filterkerzen bewegt werden. Das Filtrat wird durch den Innenraum der Filterkerzen einer Sammelkammer zugeführt und über einen Ablauf ins Freie geleitet (Fig. 1).
摘要:
A porous filter element is so formed that metal powder such as stainless steel or titanium is extruded into a hollow seamless cylinder and that the cylinder is then sintered.