An electrostatic separator or precipitator through which an air stream to be cleaned of particles flows in a longitudinal direction includes at least one electrospray ionization source, which is supplied with a positive potential and can be implemented, for example, by the tips of a graphite fiber bundle, and a collector unit arranged downstream for particle separation and having parallel collector and driver plates. The ion flow from the corona zone is additionally homogenized and spread by an upstream collector element, in particular a collector grid, upstream of the at least one electrospray ionization source, so that high particle separation rates can be achieved with minimal ozone emissions. Alternatively, or in addition, the ion flow from the corona zone can be homogenized downstream of the at least one spray ionization source by one or more border counter-electrodes.

A wet-type electric dust collection device and low-concentration SO.sub.3 mist containing, in which the wet-type electric dust collection device has an electrical field formation part in which a plurality of discharge electrodes are provided on opposing surfaces of a first electrode and second electrodes for forming a DC electrical field. The discharge electrodes of the first electrode and the discharge electrodes of the second electrodes generate corona discharges that are reversed in polarity relative to each other. The gas containing the SO.sub.3 mist and the dust is guided to the electrical field formation part without electrically charging the SO.sub.3 mist and the dust or spraying a dielectric in the gas, and while the gas flows between the electrodes, the corona discharges impart electric charges of alternately reversed polarity to the SO.sub.3 mist and the dust. The first electrode and the second electrodes collect the charged SO.sub.3 mist and dust.

An electrification apparatus for an electrostatic dust collector, including: a first electrode part having a shape of a plate having a plurality of through holes formed thereon in such a manner as to apply one of positive and negative electrodes thereto; and a second electrode part having protrusions each having a plurality of fine conductive fibers in such a manner as to protrude outwardly from the through holes of the first electrode part, whereby electrification performance is improved and harmful ozone and electromagnetic waves are reduced.

Disclosed herein is provide an electrostatic precipitator capable of allowing a charger to be thin while suppressing ozone generation.

The electrostatic precipitator 1 includes a charger 10 provided with a high voltage electrode 11 receiving a high voltage from a high voltage generating circuit 40 and a counter electrode 12 facing the high voltage electrode 11 and receiving a reference voltage from the high voltage generating circuit 40, and configured to charge suspended particles by generating a discharge between the high voltage electrode 11 and the counter electrode 12; and a dust collector 20 disposed in the downstream side of an air flow direction of the charger 10 and configured to collect the suspended particles charged by the charger 10.

The present disclosure envisages an air purification system. The system comprises includes a shell, a blower, an electrode and a plurality of spikes. The shell has electrically-grounded wall(s), an inlet, and an outlet. The blower generates flow of air through the shell. The electrode is fitted within the shell between the inlet and the outlet and is electrically isolated from the shell body. The spikes extend from the electrode. The spikes have tips spaced apart from the inner surfaces of the walls and generate a corona between the tips and the inner surface of the walls when an high voltage electric current is passed through the electrode and thereby ionize gases and charge particles present in the air resulting in the particles being deposited on the inner surface of the walls of the shell.

Provided is a solvent separation method and a solvent separation apparatus that make it possible to efficiently retrieve the thermal energy possessed by an exhaust atmosphere released in a solvent-removal step to suppress reductions in a temperature of the exhaust atmosphere. In the solvent separation method and the solvent separation apparatus, a vaporized solvent is removed from a gas while heat-exchange between the gas within a condensation part and the gas within a dust-collection part is conducted by using a heat exchange part that is placed between the condensation part that introduces the gas into a first direction and the dust-collection part that introduce the gas into a second direction opposite to the first direction the gas discharged from a downstream side of the condensation part.

The brush device comprises: a plurality of discharge brushes formed by bundling fibrous wire electrodes; a strip-shaped support board including a first plate-shaped member and a second plate-shaped member which hold the discharge brushes from both sides; and a joining means for joining the first plate-shaped member and the second plate-shaped member. The discharge brushes are disposed at intervals in a longitudinal direction of the support board with their tip end portions protruding from the support board along a width direction of the support board, and the joining means is disposed adjacent to each of the discharge brushes.

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.

A dust collecting module of a desulfurizing apparatus for removing sulfur oxides is easily installed and facilitates the application of a high voltage to discharge electrodes. The dust collecting module includes an arrangement of discharge electrodes and dust collecting electrodes alternately disposed and spaced apart from each other, the discharge electrodes configured to be charged to a predetermined voltage for generating a corona discharge between the discharge electrodes and the dust collecting electrodes; a first setting beam having a plurality of lower slots into which the discharge electrodes are securely inserted; and a lower frame extending in a stacking direction of the discharge electrodes to support the discharge electrodes, wherein the predetermined voltage is applied to the discharge electrodes through the lower frame and the first setting beam. The dust collecting module may further include an insulating connecting member from which the lower frame is suspended.

An ionizing device is described, comprising a tubular bulb made of electrically insulating or dielectric material extending along a longitudinal reference axis and having the two longitudinal open ends and opposite each other, a tubular cathode engaged in the bulb, a tubular anode fitted to the bulb, a pair of covers, each of which has a respective internal seat into which a respective end of the bulb is inserted so as to hermetically seal it, and a conductive electrode which extends into the bulb and is electrically connected to the cathode.