Conical support insulators are used for ESP. Now let me give you an idea about ESP. An electrostatic precipitator is a huge unit that controls industrial emission. It traps and removes all the dust particles that accumulate in the exhaust gas stream. Here are the names of few industries where electrostatic precipitators are used:
Cement
Electric/Power
Metals
Chemicals
Paper
Precipitators need to electrostatically charge the dust particles present in the gas stream in order to function. These precipitators come in various sizes, designs and types; it all depends on the characteristics of the dust particles. Big and powerful plants have many precipitators for a single unit.
Take a look at the major components of a precipitator:
Discharge electrodes
Precipitator controls
Power components
Purge air systems
Rapping systems
Flue Gas conditioning
The ESP process involves combustion but the dust particles can be emitted by any industrial process. There are six activities involved:
Ionization - The process where particles are charged
Migration - Transportation of charged particles to the collecting facades
Collection - Precipitation of the charged particles
Charge Dissipation - This process involves neutralizing of the charged elements
Particle Dislodging - Eradicating the particles to the hopper from the collecting ground
Particle Removal - Transferring the particles from the hopper to the disposal point
High voltage conical support insulators electrically isolate and mechanically support the discharge electrodes from the ESP casing. Support insulators have immense compressive strength to carry the loads of high voltage electrodes.
There are many companies that can supply your needs for cylindrical support insulators. Insulators are manufactured using various types of alumina and porcelain. You can also get furnished insulators like glazed, non-glazed based on customer requirements.
Designing a precipitator and performance
Manufacturing a precipitator for the best performance involves accurate sizing along with efficiency optimization. Most of the users depend on the manufacturer for the correct design parameters and there are some who play an active role or hire other engineering firms. The performance depends on the collecting efficiency and the size. The gas volume and the collecting area are the two essential parameters. The dust chemistry and power input are the factors in performance.
Sizing - This is a complex procedure and each manufacturer follows a specific sizing process.
Collecting Efficiency - This is based on dust load and specific gas volume and then calculations are done to estimate the size of a precipitator for best efficiency.
Power input - It includes current and voltage in an electrical field. If the power input increases, the collecting efficiency of the precipitator enhances under normal conditions.
This is a detailed study about electrostatic precipitators.
