A filter system including a filter housing with an inlet part, a clean-gas outlet, and a partition wall defining a product chamber and a clean-gas chamber. The partition wall having openings from which filter elements extend downward into the product chamber. The inlet part is placed in an upper part of the product chamber and configured for supplying a product-containing flow of gas to the product chamber. The gas flow being conveyed through the filter elements and into the clean-gas chamber, where the filter system is provided with an air or gas supply placed in the product chamber and configured for leading drying air or gas into or out of the filter system.

A method of drying filter elements in a filter system by passing drying air or gas through a filter inlet and/or through a drying air or gas supply.

A product gas filter with a filter housing, into which product gas of a wood gas reactor is supplied, by means of a product gas line, and is discharged as clean gas through a clean gas line. Long-chain hydrocarbons in the product gas stream can be at least substantially reduced, and a high filter performance achieved, where the filter is divided gas-tight into two parts by a separating tray in such a way that the product gas line is delivered to the lower region and the clean gas line exits from the upper collecting space; at least two filter cartridges, each coupled individually to a compressed air line and compressed air source, project into the lower region; and a zeolite container is connected to the lower portion of the filter via a compressed air source connectable, Venturi nozzle and a lockable line.

Described are high pressure filter apparatuses that include first and second pieces having a welded seam along a circumference of the body, and a sleeve placed around and surrounding the welded seam.

The present disclosure generally relates to the field of filtration. In particular, the present disclosure relates to filtration devices, systems and methods for high flowrates and low pressure differentials through porous bodies of metal fiber media.

A system for filtering a gas-solids mixture, comprises: a housing; a separating body dividing the housing in a raw gas chamber and a clean gas chamber, the raw gas chamber being accessible via an inlet for the gas-solids mixture and the clean gas chamber comprising an outlet for discharging a cleaned gas; a number of filter elements suspended from the separating body; lower ends of the filter elements being connected to a support grid, the support grid comprising a number of arms; one or more cleaning elements provided on the arms of the support grid for cleaning thereof.

Filter element (1), in particular filter cartridge, for filtering exhaust gases or process gases, having a filter body (2) which defines a longitudinal direction (R) and is subdivided along the latter into a plurality of substantially tubular filter body elements (7, 8) which are each connected in pairs at their end portions (9, 10) pointing towards one another, wherein the filter body (2) defines an interior space (5) of the filter element (1), wherein two filter body elements (7, 8) connected together in pairs are screwed together by means of internal and external threads (11, 12) formed at their end portions (9, 10) and corresponding to one another and are additionally glued together in their contact regions by means of an adhesive (13).

A disposable filtration device includes a plurality of disposable filter capsules connected with each other by lines, which are carried by a rigid holder. At least the holder and the lines between the filter capsules preferably are formed of a sterilizable material, so that the filtration device can be sterilized in the pre-mounted, i.e. ready-to-connect condition, and can be packed and transported without a risk of damage.

Provided is a 3D printer having a residual powder removal device, including: a cabinet configured to form an exterior and protect a plurality of parts embedded therein, a chamber configured to form a printing space where a 3D part is formed by being irradiated with a laser from a laser irradiator inside the cabinet, a concentration measurer configured to measure a concentration of metal powder scattered inside the chamber, a powder transfer unit configured to transfer the metal powder from inside the chamber, and a residual powder removal device configured to spray an inert gas into the chamber to forcibly scatter cohered metal powder, discharge the metal powder scattered inside the chamber to the outside along with the inert gas, and cause the metal powder to pass through a filter assembly so that the metal powder is filtered and the residual metal powder is removed from inside the chamber.

Described are high pressure filter apparatuses that include first and second pieces having a welded seam along a circumference of the body, and a sleeve placed around and surrounding the welded seam.

A filter candle is provided, comprising one or more filter elements shaped as hollow cylinders of porous material, the filter elements having substantially identical inner and outer diameters and are disposed coaxially with each other; a support element comprising a metal tube disposed within the filter element(s), said metal tube having an outer diameter smaller than the inner diameter of the filter element(s), said metal tube having a wall with a plurality of perforations; and at least two annular sealing disks having an outer diameter equal to or larger than that of the filter element(s) and an inner diameter smaller than that of the filter element(s), wherein first and second terminal sealing disks are disposed at opposite axial end faces of a single filter element or of a plurality of filter elements disposed in line,
wherein the filter elements are compressed between the first and second terminal sealing disks.