摘要:
An air-inlet duct includes a particle separator and an agglomerator. The particle separator is configured to receive atmospheric air laden with particles and to direct the particles into a scavenge passageway while allowing the atmospheric air to move into a compressor passageway thereby reducing the number of particles that enter the compressor passageway. The agglomerator is configured to cause the particles to be attracted to one another and cluster together.
摘要:
An emissions reduction stack includes a conditioning section, collector section utilizing a Wet Electrostatic Precipitator (WESP), and output section. A chemically active aqueous stream is introduced into an incoming process stream in order to saturate the stream and produce a fog stream wherein water is condensed on the surface of particulates. The process of condensation increases the efficiency of the particulate filtration process conducted by the WESP.
摘要:
An impact filter suitable for a kitchen exhaust hood is provided with a grease trap to capture grease particles and channel the particles away. The trap can be of different configurations. The filter can be used in various processes to clean air streams, such as filtering processes for removing grease and other cooking exhaust particles and other processes for removing grease particles.
摘要:
Fly ash and fine dust in a gas stream from a coal combustor, for example, are efficiently collected in a 2-stage, tubular, granular bed filter. The stages of the filter are arranged one above the other so that the granules may move from the upper stage to the lower stage under the influence of gravity. Larger particulate in the gas stream is first collected by the lower stage, and then the remaining particulate is electrically charged and collected by the upper stage. Both stages are electrified sufficiently to rigidify the granular beds and adhere the particulate to the granules, so that the granules and the collected particulate move downwardly through the filters as a plug. Granules that exit from the lower stage are cleaned and returned to the upper stage. Non-porous granules may be used to prevent fine particulate from becoming embedded in the granules.
摘要:
A fluidized bed, particulate collector system wherein, in one embodiment, the bed particles have applied thereto at the surface thereof, an additive that serves to adhere particulate, once collected, to the bed particles. The bed particles and/or additive may be combustible or may be incombustible. In one embodiment, the system includes two fluidized beds, in tandem, the first of which collects particulate mostly in the supermicron sizes and the second of which is an electrofluidized bed that collects particulate mostly in the submicron sizes.
摘要:
Apparatus for effecting the function conventionally performed by the distributor plate in static, packed, or fluidized beds wherein the bed particles are supported or stabilized by an electric field imposed by an external source of electric potential.
摘要:
A particle size distribution measuring system 1 sets a reference voltage in a DMA 300 to a voltage value U, and executes the classifying of aerosol particles based on electrical mobility, in an electric field to which the voltage value U is supplied. When a predetermined condition is not satisfied, an analyzing device 600 causes a sum of the voltage value for the previous classifying (previous value) and the voltage value U to be re-set in the DMA 300 and causes the classifying of the aerosol particles to be executed again. A particle measuring device 400 defines a first measurement result as a measurement result M1, and defines a result of the re-measurement as a new measurement result Mx every time the measurement is thereafter repeated. An analyzing device 600 calculates a ratio of the measurement result Mx to the measurement result M1, and confirms that the condition is satisfied when the calculation result is a prescribed value or smaller, while confirming that the condition is not satisfied when the calculation result is larger than the prescribed value.
摘要:
The present invention provides methods and apparatus for decomposing toxic compounds so that reaction by-products produced thereby are selectively reduced. A method generally comprises: introducing a carrier gas, having a toxic compound entrained therein, into a packed-bed of ferroelectric pellets; and polarizing the pellets to produce a plasma which decomposes the toxic compound. The pellets are coated with a catalyst selected to react with by-products of the decomposition of the toxic compound and thereby produce non-toxic compounds. An apparatus for decomposing toxic compounds and selectively reducing by-products, according to the present invention, comprises: a vessel having an internal passageway therethrough; a packed-bed of pellets coated with at least one catalyst; means for producing a plasma within the packed-bed of pellets; and carrier gas flow means in fluid communication with the internal passageway for causing a carrier gas entrained with toxic compounds to flow through the packed-bed of pellets. The present invention also discloses methods and apparatus wherein a pulsed corona reactor having a catalyst coating on a portion thereof is utilized to decompose toxic compounds.
摘要:
The present invention provides methods and apparatus for decomposing toxic compounds so that reaction by-products produced thereby are selectively reduced. A method generally comprises: introducing a carrier gas, having a toxic compound entrained therein, into a packed-bed of ferroelectric pellets; and polarizing the pellets to produce a plasma which decomposes the toxic compound. The pellets are coated with a catalyst selected to react with by-products of the decomposition of the toxic compound and thereby produce non-toxic compounds. An apparatus for decomposing toxic compounds and selectively reducing by-products, according to the present invention, comprises: a vessel having an internal passageway therethrough; a packed-bed of pellets coated with at least one catalyst; means for producing a plasma within the packed-bed of pellets; and carrier gas flow means in fluid communication with the internal passageway for causing a carrier gas entrained with toxic compounds to flow through the packed-bed of pellets. The present invention also discloses methods and apparatus wherein a pulsed corona reactor having a catalyst coating on a portion thereof is utilized to decompose toxic compounds.
摘要:
The invention relates to apparatus for biological purification and filtration of air. The apparatus includes a coarse filter (1), an ionizer (5), an additional plate (9) and a fine filter (10), which are installed in this order along the path of the gas flow, and a power source (23). The coarse filter (1) is essentially an electrostatic precipitator consisting of three plates (2,3,4) adjacent to each other, the outer-most (2,3) of which are made of a cellular metal and are connected electrically to the opposite-in-sign terminals of the power source (23), whereas the central plate (4) is made of polyurethane foam. The coarse filter (1) abuts closely on the cylindrical nondischarge electrode (6) of the ionizer (5).