Sulphuric acid plants, separators for separating entrainment for process gas, and gas treatment processes for generating sulphuric acid are provided. The sulphuric acid plant comprises a source of process gas, an entrainment eliminator, a gas rotator located downstream of the gas-liquid contactor, and a separator located downstream of the entrainment eliminator and upstream of the gas rotator. The separator comprises a plurality of passages. Each passage comprises a vane extending longitudinally along the passage, wherein each vane rotates a process gas flowing through the separator. The process comprises transferring process gas from an entrainment eliminator to a separator located downstream of the entrainment eliminator, rotating the process gas through the separator to separate entrainment, and transferring the separated process gas from the separator to rotating equipment located downstream of the separator.

Sulphuric acid plants, separators for separating entrainment for process gas, and gas treatment processes for generating sulphuric acid are provided. The sulphuric acid plant comprises a source of process gas, an entrainment eliminator, a gas rotator located downstream of the gas-liquid contactor, and a separator located downstream of the entrainment eliminator and upstream of the gas rotator. The separator comprises a plurality of passages. Each passage comprises a vane extending longitudinally along the passage, wherein each vane rotates a process gas flowing through the separator. The process comprises transferring process gas from an entrainment eliminator to a separator located downstream of the entrainment eliminator, rotating the process gas through the separator to separate entrainment, and transferring the separated process gas from the separator to rotating equipment located downstream of the separator.

A surface cleaning apparatus has a cyclone chamber having a longitudinal cyclone axis of rotation wherein the dirt outlet is defined by a gap between the sidewall of the cyclone and a plate positioned at the dirt outlet end of the cyclone.

A surface cleaning apparatus has a cyclone chamber having a longitudinal cyclone axis of rotation wherein the dirt outlet is defined by a gap between the sidewall of the cyclone and a plate positioned at the dirt outlet end of the cyclone.

A dust collecting system for single crystal growth system includes an air compressor, a dust collecting device, a first inert gas source, a rotary pump and a scrubber. The air compressor is fluidly connected to an exit pipe of the single crystal growth system. The exit pipe is used to exhaust unstable dust from the single crystal growth system. The dust collecting device is fluidly connecting to the exit pipe to collect the dust oxide. The first inert gas source is fluidly connected to the exit pipe to blow a first inert gas into the exit pipe to compel the dust oxide toward the dust collecting device. The rotary pump is fluidly connected to the dust collecting device. The scrubber is fluidly connected to the rotary pump. The rotary pump transports the residual dust oxide toward the scrubber. The present disclosure further provides a method for collecting dust.

A device separates particles, such as oil particles, from a gas flow, from a blow-by gas of a crankcase ventilation, in an internal combustion engine. The device includes a valve seat, which defines at least one flow passage opening and through which the gas flow at least partially flows in a main flow direction, and a movable valve element, which can be adjusted relative to the valve seat such that flow guide surfaces of the valve seat and the valve element deflect the gas flow in such a way that particles separate from the gas flow due to the impact of the particles on the flow guide surfaces. At least one flow guide surface of the valve seat or the valve element has at least one turbine blade-like guide projection or at least one turbine blade-like guide depression in order to transform the gas flow into a swirling flow.

A device separates particles, such as oil particles, from a gas flow, from a blow-by gas of a crankcase ventilation, in an internal combustion engine. The device includes a valve seat, which defines at least one flow passage opening and through which the gas flow at least partially flows in a main flow direction, and a movable valve element, which can be adjusted relative to the valve seat such that flow guide surfaces of the valve seat and the valve element deflect the gas flow in such a way that particles separate from the gas flow due to the impact of the particles on the flow guide surfaces. At least one flow guide surface of the valve seat or the valve element has at least one turbine blade-like guide projection or at least one turbine blade-like guide depression in order to transform the gas flow into a swirling flow.

An assembly for removing particles from a fluid stream includes a first particle remover having a main flow outlet emitting a first reduced-particle stream and a scavenge flow outlet emitting a particle-laden stream, as well as a second particle remover fluidly coupled to the scavenge flow outlet and emitting a second reduced-particle stream.

An assembly for removing particles from a fluid stream includes a first particle remover having a main flow outlet emitting a first reduced-particle stream and a scavenge flow outlet emitting a particle-laden stream, as well as a second particle remover fluidly coupled to the scavenge flow outlet and emitting a second reduced-particle stream.

An air intake device for a vehicle. The device includes an inlet for air, a first outlet arranged for providing air to an engine of the vehicle and a second outlet arranged for discharging liquid separated from the air provided to the first outlet, and an intermediate portion forming an air channel extending from the inlet to the first outlet and the second outlet. A bottom surface on the inside of the intermediate portion is inclined relative to a horizontal plane for directing liquid in the air channel towards the second outlet.