Electrostatic Precipitator

(redirected from electrostatic precipitators)
Also found in: Dictionary, Thesaurus.

electrostatic precipitator

[i′lek·trə‚stad·ik prə′sip·ə‚tād· ər]
(engineering)
A device which removes dust or other finely divided particles from a gas by charging the particles inductively with an electric field, then attracting them to highly charged collector plates. Also known as precipitator.

Electrostatic Precipitator

 

a device used to remove liquid droplets or solid particles from an industrial gas by means of the ionization of the droplets or particles as the gas passes through a corona-discharge area and the subsequent precipitation of the droplets or particles on electrodes. In most cases, an electrostatic precipitator consists of a precipitator and a voltage source. The precipitator is a collecting chamber that contains corona-forming electrodes and collecting electrodes. The ionization area and the precipitation area may be either integrated or separated.

Electrostatic precipitators use only high-voltage (40-70 kilo-volts) direct current; the corona-forming electrodes are always connected to the negative terminal of the power supply. According to the state of the gas, electrostatic precipitators may be classified as wet or dry precipitators. In wet precipitators, the gas is saturated with moisture up to its dew point. According to the method of droplet or particle removal, a distinction is made between periodic and continuous precipitators. Electrostatic precipitators may operate at atmospheric pressure or at pressures above or below atmospheric pressure. The gas temperature may be as high as 500°C or even higher; the degree of gas cleaning may be as high as 99.9 percent.

Electrostatic precipitators are widely used to clean the flue gases of fossil-fuel-fired steam power plants. They are also used in, for example, ferrous and nonferrous metallurgy.

electrostatic precipitator

A device installed in flues, and the like, to prevent smoke and dust particles from escaping to the atmosphere; the particles are given an electric charge as they pass through a charged screen; then they are attracted to one of two electrically charged plates through which they pass; from time to time they are removed from the plates.
References in periodicals archive ?
With the advantages of high dusting efficiency, convenience management, low fault rate, and strong adaptability, the electrostatic precipitator (ESP) is widely applied for industrial flue gas treatment in nonferrous metals, metallurgy, construction materials, coal, petrochemicals, and electricity [1-6].
Vibration of collecting electrodes in electrostatic precipitators - Modelling, measurements and simulation tests, Journal of Electrostatics 70(3): 327-332.
(FEIDA), a leading supplier of electrostatic precipitator in China, and began operations in March 2015.
The study was focused on novel CFB OSA, the well-studied PF OSA from electrostatic precipitators was used for comparison.
Popa, "Contributions to Improve Performances of Plate-Type Electrostatic Precipitators for Bi-Phase Systems Gas-Solid Particles", Ph.D.
The program on electrostatic precipitators installation at Ekibastuz GRES-1 will be completed next year.
The scope of the order envisages design, engineering, manufacture, supply, erection and commissioning of steam turbine, generator and boiler, along with associated auxiliaries and electricals, besides state-of-the-art Controls & Instrumentation (C&I) and Electrostatic Precipitators (ESPs).
The system comprising of the electrostatic precipitators, the ducts from the airpreheater outlet to the ESP inlet and the duct from the ESP outlet to the ID fan inlet, the transition duct from the outlet of ID fan to the inlet of the chimney and duct representation of ESP1&ESP2 were modeled to a scale of 1:10.
Coming from industrial backgrounds, the authors go into detail about the different kinds of fabrics for baghouses, the design of electrostatic precipitators, and the operating principles behind wet scrubbers.
What's new: The company has just begun producing stainless steel parts for "wet electrostatic precipitators," which help "scrub" carbon dioxide emissions from coal-fired electric generating systems.
They include also papers which deal with hydrodynamic problems in electrostatic precipitators. Some of them consider ambient air as media in numerical modeling of ESP (Dumont & Mudry, 2003) or simply offer the review of some ESP's problems (Parker, 1997).
The equipment supplies will include an ATOX raw grinding mill with a MAAG Gear unit, a complete ILC three-support kiln with four-stage preheater, calciner and rotary cooler plus a UMS cement mill, electrostatic precipitators, two sand mills and Pfister feeding equipment.

Full browser ?