Systems and methods are provided for mobile treatment of an exhaust stream. A treatment assembly including an inlet. A coupling is configured to releasably couple the inlet with an outlet of a stationary processing facility that produces an exhaust stream. The treatment assembly receives the exhaust stream in an input stream, treats at least one constituent of the input stream, and produces a treated exhaust. The treatment assembly is decouplable from the stationary processing facility and transportable to various locations.

A dust suction system for a dry degreasing and deburring machine includes an air suction circuit, a suction fan, a settling chamber provided with a filter cartridge, an unclogging unit provided for injecting a flow of unclogging air into the filter cartridge during an unclogging operation, characterized in that it comprises a control unit that controls the fan and the unclogging unit depending on measurements of pressure and load in the air suction circuit. A machine and a dust suction method are also described.

Disclosed is a gas fuel supply system including a main fuel inlet, a pressure regulating valve, a pneumatically controlled shutoff bleeder valve and a main fuel outlet that are connected through pipes. The pneumatically controlled shutoff bleeder valve includes a pneumatic control valve and a shutoff bleeder valve. The shutoff bleeder valve is configured to open or close a gas fuel delivery passage from the main fuel inlet to the main fuel outlet, or configured to discharge the gas fuel in the pipe. The pneumatic control valve is configured to control the shutoff bleeder valve to be in a desired state. The gas fuel supply system does not need connection to an additional gas source, and the gas supply stability is improved.

An air cleaner assembly for filtering intake air for a power plant can include a filter cartridge disposed within a housing of the air cleaner assembly, a precleaner assembly including at least one particle separator for separating particulates from an airflow stream and a scavenge port for discharging the separated particulates, the precleaner assembly being located upstream of the filter cartridge, a scavenge system for evacuating the separated particulates out of the scavenge port, the scavenge system including an electric motor coupled to an fan, an input sensor generating an input signal relating to a parameter associated with one or more of the precleaner assembly, the air cleaner assembly, a power plant receiving air from the air cleaner assembly, and a vehicle associated with the power plant, and a controller for operating the speed of the scavenge system based on the input signal from the input sensor.

A method to predict the lifespan of an air filter including providing pressure sensors in a device having an air filter and a fan to drive air through the air filter, one pressure sensor located on an intake side of the fan and one pressure sensor located on an outflow side of the fan, periodically calculating a static pressure drop across the fan, storing the static pressure drop daily; calculating an average pressure drop, calculating a cumulative particle loading on the filter, comparing the cumulative particle loading with a pre-determined maximum particle loading for the filter, and determining if the filter needs to be changed is provided.

A system for treating exhaust gas generated by combustion of biomass comprises a frame, a first cyclonic separation stage supported on the frame and comprising a plurality of parallel gas cyclones in fluidic communication with an inlet receiving the exhaust gas for removing from the exhaust gas particulate matter exceeding a first threshold size, and a second bag filtration stage supported on the frame and comprising a plurality of serially-communicated baghouses each comprising a plurality of bag filters therein for removing, from the partially treated exhaust gas received from the first cyclonic separation stage, particulate matter exceeding a second threshold size that is smaller than the first size which was passed through the first treatment stage. The gas cyclones of the first stage are arranged in a laterally extending row across the frame and the baghouses are arranged in a longitudinally extending row across the frame.

A system and method for automatically cleaning air filters of a medical imaging system is provided. The method includes monitoring an air filter operating condition, determining that the air filter operating condition is not within a pre-determined threshold, and providing a control signal to at least one air filter. The at least one air filter comprises a motor, drive shaft, rotatable passive shaft, continuous belt air filter, and a stationary filter brush. The drive shaft is rotatably coupled to the motor. The continuous belt air filter is coupled to the drive shaft and the passive shaft. The stationary filter brush is mounted against the continuous belt air filter. The method includes rotating, by the motor in response to the control signal, the drive shaft to translate the continuous belt air filter around and between the drive shaft and the rotatable passive shaft, and across the stationary filter brush.

Embodiments of the present application provide a status detection method and apparatus for a filter. The filter filters a fluid in a sealed channel. At least a pressure sensor is further provided downstream of the filter in the sealed channel. The method includes: if a fluid flowing through a filter in a sealed channel is controlled to have a first flow rate, then acquiring a first pressure value measured by a pressure sensor; if the fluid flowing through the filter in the sealed channel is controlled to have a second flow rate, then acquiring a second pressure value measured by the pressure sensor; and determining a status of the filter according to a difference between the first pressure value and the second pressure value. Therefore, detection of the status of the filter is achieved, and an operator is prompted to maintain/replace the filter in time. In addition, an existing component can be used, so that applicability is high and detection costs are low.

A method for operating a vacuum cleaning appliance, having a filter element, a filter element cleaning device, a control device, a turbine, a first pressure sensor and a second pressure sensor. The method includes operating the vacuum cleaning appliance to suck in the air stream through the filter element; determining a first pressure reference value; measuring the pressure difference between the first and second pressure values; dedusting the filter element with the aid of the filter element cleaning device if the value of the pressure difference between the first and second pressure values reaches a first threshold value; determining a second pressure reference value after the end of the dedusting of the filter element; determining a difference value between the second and first pressure reference values; and dedusting the filter element if the difference value between the second and first pressure reference values reaches a second threshold value, or switching off the vacuum cleaning appliance if the difference value between the second and first pressure reference values reaches a third threshold value. A vacuum cleaning appliance for carrying out the method.

A dry material transfer pump comprises an outer tube including an outer tube channel having an upstream end that is axially aligned with a downstream end thereof, and a plenum portion having a cross-sectional width that is larger than a cross-sectional width of the outer tube channel. A pressurized gas inlet is defined through the outer tube and is in fluid communication with the plenum portion. An inner tube is disposed annularly within the outer tube channel and defines an inner tube channel configured to receive particulate matter. At least one opening is defined radially through a wall of the inner tube and fluidly couples the plenum portion to the inner tube channel to allow the pressurized gas to flow from the plenum portion into the inner tube channel and create suction within the inner tube channel for drawing the particulate matter through the inner tube channel.