Industrial vacuum systems are disclosed, as are filter chambers for industrial vacuum systems and other filtration applications. The filter chambers in these systems use two distinct types of filtering elements within a single chamber, arranging the filter elements such that air cannot pass through a secondary filter element until the air has first passed through and been filtered by a number of primary filter elements. The airflow within the filter chamber may be essentially vertical, and the secondary filter element may be positioned above the primary filter elements. The filter chamber may also include an agitation system for cleaning the filtering elements. The agitation system may be constructed such that it can operate while the system is in use.

A dust filtering and collection system for filtering dust and other debris particles from an incoming dust laden air stream, such air stream generally being used for conveying granular material into or from a bulk tank trailer, a railroad car, or other conveying vehicle, the filtering system designed to be functioned by vacuum air pressure, operatively generated by a blower, to draw in the soiled air into the system, to cleanse such air for further use in the conveying of the granular material. The air flow may be reversed, to provide for a dislodging of any dust particles from the filtering system, and to cleanse the filter for further efficient usage of the system in conveying granular material into or out of the tank trailer, or other vehicle during usage.

A filter insert for installation in a housing has a hollow-cylindrical separation element for separating liquid or aerosol from a gas flow by coalescence. The separation element has a central cutout. An annular disk-shaped flange is arranged at an end face of the separation element at the central cutout and can be arranged between a housing cover and a cylindrical housing body of the housing. A seal element is arranged at an end face of the flange so as to be oriented toward a radially inner side of the flange. The seal element, when the filter insert is in use as intended, is arranged between the flange and the housing cover and seals a raw side of the separation element in relation to a clean side of the separation element. A liquid separator provided with such a filter insert is used to separate oil from compressed air.

A dust filtering and collection system for filtering dust and other debris particles from an incoming dust laden air stream, such air stream generally being used for conveying granular material into or from a bulk tank trailer, a railroad car, or other conveying vehicle, the filtering system designed to be functioned by vacuum air pressure, operatively generated by a blower, to draw in the soiled air into the filter system, to cleanse such air for further use in the conveying of the granular material. The air flow may be reversed, to provide for a dislodging of any dust particles from the filtering system, and to cleanse the filter for further efficient usage of the system in conveying granular material into or out of the tank trailer, or other vehicle during usage. The filter system includes a pod of filter tubes encapsulated by a polymer header that mounts to a transverse plate that secures to the approximate upper end of the filter canister of the filtration system.

The present disclosure relates to methods and devices for removing an aerosol generated during a printing process. In an example there is disclosed a device which may comprise an air suction device, an air flow baffle, an aerosol absorber, and a droplet filter. The air suction device may draw air away from an area around a printhead nozzle, past the air flow baffle, through the droplet filter, towards the air suction device. The air flow baffle may cause a change in air flow direction such that at least some aerosol droplets contact the aerosol absorber.

An air purifier includes: a main body including a suction port; a fan in the main body and configured to form a flow of air for air to be suctioned through the suction port; a plurality of blades configured to guide an air flow direction of the air suctioned through the suction port; and one or more processors configured to: identify a surrounding environment of the air purifier based on an operation state of the air purifier; and control the plurality of blades based on the surrounding environment.

A filter system operating under vacuum conditions, comprising a filter section comprising filter elements of a number and a size selected to optimize a flow stream volume within the filter section and a contact surface between the flow stream and surfaces of the filter elements and to optimize flow of a liquid phase captured from the flow stream along the surfaces of the filter elements, and configured to capture the liquid phase from the flow stream, and direct the liquid phase from the filter section to a flow stream input section, which directs the liquid phase out of the system at a liquid output thereof, the system delivering a filtered flow stream from a flow stream output section at a flow stream output thereof.

The present disclosure includes a system for processing waste from a chemical vapor deposition process. The system can include an inlet configured to be connected to one or more chemical vapor deposition systems, the inlet configured for receiving an effluent comprising one or more waste gases, a vacuum component in fluid communication with the inlet, the vacuum component configured for maintaining a vacuum of about 0.5 Torr to about 3.5 Torr and actuatable for removing the one or more waste gases from the one or more chemical vapor deposition systems, and a fluid line fluidly connecting the inlet to the vacuum component; and a controller in communication with the vacuum component.

The invention relates to a method for removing reactive particles from a vacuum environment (14), in which a process gas is conveyed from the vacuum environment (14) by means of a vacuum pump (21, 22). The process gas is passed between the vacuum environment (14) and the vacuum pump (21, 22) through a first filter (31) and a second filter (32) to filter reactive particles from the process gas. A liquid ring pump (35) is used to discharge particles from the first filter (31) and the second filter (32). In a first phase of the method, the first filter (31) is active and the second filter (32) is passive; in a second phase of the method, the first filter (31) is passive and the second filter (32) is active. In the first phase, the process gas is passed through the first filter (31) and the liquid ring pump (35) discharges particles from the second filter (32). In the second phase, the process gas is passed through the second filter (32) and the liquid ring pump (35) discharges particles from the first filter (31). The invention also relates to a device for removing reactive particles from a vacuum environment and to a process system for producing monocrystalline silicon ingots.