ELECTROSTATIC PRECIPITATOR Meaning and
Definition
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An electrostatic precipitator refers to a technological device utilized for removing fine particles, such as dust and smoke, from an industrial gas stream. It operates on the principle of electrostatic attraction, where charged particles are attracted to and collected on grounded plates or electrodes within the unit.
The process begins as the polluted gas stream enters the precipitator. The gas passes through an ionization section, where various metallic discharge electrodes are electrically charged, generating a corona discharge. This release of electrical energy causes the surrounding gas molecules to become ionized, creating charged particles.
As the charged particles move further into the device, they encounter collector plates or tubes. These collection surfaces possess an opposite and larger electrical charge, ensuring the particles are attracted to and deposited upon them. Due to the electrical force between the charged particles and the collector plates, the fine particles are separated from the gas stream, forming a layer of dust or build-up on the collecting surfaces.
To ensure the efficiency and continuous operation of an electrostatic precipitator, a series of rappers or mechanical devices physically strike the collecting plates or tubes. This action dislodges the accumulated particles and causes them to drop into hoppers or conveying systems for further disposal or recycling.
The use of electrostatic precipitators is prevalent in a variety of industries, including power plants, steel mills, cement plants, and chemical factories. Their ability to effectively capture and remove fine particulate matter makes them a valuable component in air pollution control systems, ensuring cleaner air emissions and reducing detrimental environmental impacts.
Common Misspellings for ELECTROSTATIC PRECIPITATOR
- wlectrostatic precipitator
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Etymology of ELECTROSTATIC PRECIPITATOR
The word "electrostatic precipitator" is derived from several components:
1. Electro-: This prefix comes from the Greek word "ēlektron", meaning "amber". The ancient Greeks discovered that amber, when rubbed, produced an electric charge. Hence, the term "electricity" derived from this word.
2. Static: This word comes from the Latin word "staticus", which means "causing to stand still" or "at rest". In the context of electricity, static refers to the accumulation of electric charge in a stationary object.
3. Precipitator: This word is derived from the Latin word "praecipitare", meaning "to throw down" or "to cause to fall". In this context, the term refers to the process of removing or collecting certain particles or substances from a gas or liquid stream.
