Methods and electrostatic precipitators achieve efficient separation. Scrapers are specifically designed to clean the electrodes in the electrostatic precipitators. Particulates are collected from an entrained air stream by keeping both the discharge and collection electrode surfaces clean during the precipitation process so that the electrical corona discharge remains constant and the electrical field flux lines are maintained. This is accomplished using a plurality of vertical disc electrodes and a plurality of horizontal discharge electrodes preferably combined with the ability to keep the electrodes clean during the exhaust process.

An electrification apparatus for dust collection includes an electrification module configured to generate an ion that is emitted to air. The electrification module includes: at least one discharge tip configured to emit the ion in a direction opposite to a flow direction of the air, a conductive plate configured to generate a potential difference with the discharge tip, a frame that defines an appearance of the electrification module and that supports the discharge tip and the conductive plate, and a high voltage supplier configured to generate a voltage to supply the voltage to the discharge tip.

An electrification apparatus for dust collection includes an electrification module configured to generate ions that are emitted to air. The electrification module comprises: a high voltage tip comprising at least one discharge tip configured to emit the ions in a direction opposite to a flow direction of the air, a conductive plate disposed around the discharge tip and configured to generate an electric potential difference with the discharge tip of the high voltage tip, a lower frame that mounts the conductive plate and the high voltage tip, and an upper frame that is coupled to the lower frame and that covers the conductive plate and the high voltage tip so that the discharge tip is exposed to outward.

An electrification apparatus for dust collection includes an electrification module configured to generate an ion emitted to air and comprising: at least one discharge tip configured to emit the ion in a direction opposite to a flow direction of the air, at least one tip holder supporting the discharge tip, a conductive plate generating a potential difference with the discharge tip, and a frame defining an appearance of the electrification module and supporting the tip holder and the conductive plate. The frame comprises an upper frame disposed at an upper side of the conductive plate and a lower frame disposed at a lower side of the conductive plate, the tip holder is disposed between the upper frame and the lower frame, and an upper surface of the tip holder is coupled to the upper frame and a lower surface of the tip holder is coupled to the lower frame.

A wearable air purifier includes at least one wearable component, a control unit, at least one speaker assembly and at least one negative ion generating component. The control unit is disposed inside the at least one wearable component. The at least one speaker assembly is disposed on the at least one wearable component and electrically connected to the control unit. The at least one negative ion generating component is disposed on the at least one wearable component and electrically connected to the control unit. The control unit provides high-voltage currents to the at least one negative ion generating component to enable the at least one negative ion generating component to emit negative ions by corona discharging, and the control unit further provides audio signals to the at least one speaker assembly to activate the at least one speaker assembly to generate sound.

An engine air intake dust removal system and method, comprising an air intake dust removal system inlet (1011), an air intake dust removal system outlet and an air intake electric field device (1014). The air intake dust removal system (101) and method can effectively remove particulate matters from air trying to enter the engine, and make the air entering the engine cleaner.

An exhaust gas treatment system, comprising an ozone purification system. The ozone purification system comprises an ozone amount control apparatus (209), used to control an amount of ozone so as to effectively oxidize gas components to be treated in exhaust gas, the ozone amount control apparatus (209) comprising a control unit (2091). By means of the present exhaust gas treatment system, particulate matter can be effectively removed from exhaust gas, and the system features a better exhaust gas purification treatment effect.

An engine exhaust gas dust-removal system and method. The engine exhaust gas dust-removal system comprises an exhaust gas dust-removal system inlet, an exhaust gas dust-removal system outlet, and an exhaust gas electric field device The engine exhaust gas dust-removal system has a better dust-removal effect, and can effectively remove particulate matters in engine exhaust gas.

This application relates to an electrostatic precipitator with an electromagnetic wave tube comprising a carbon nanotube (CNT)-based emitter. The electrostatic precipitator includes a charger configured to include the CNT-based emitter and ionize microparticles, in contaminated air introduced from the environment, by emitting an electromagnetic wave. The electrostatic precipitator further includes a collector configured to collect the ionized microparticles to discharge clean air.

An exhaust treatment system includes an exhaust dust removal system and an exhaust ozone purification system. The exhaust dust removal system has a dust removal system inlet, a dust removal system outlet, and an electric field device (1021). The exhaust ozone purification system includes a reaction field (202) for mixing an ozone stream with an exhaust stream for a reaction. The exhaust treatment system is able to effectively remove particulate matters from the exhaust, improving the purifying treatment effect on the exhaust.