1. Mechanical dust removal equipment: Mechanical dust removal equipment includes gravity dust removal equipment, centrifugal dust removal equipment and inertial dust removal equipment.
2. Washing and dust removal equipment: Washing and dust removal equipment includes water bath dust removal equipment, bubble dust removal equipment, Venturi dust removal equipment and water film dust removal equipment.
3. Filtering and dust removal equipment: the filtering type is similar to a mask. The dust removal mechanism of the dust removal equipment is to intercept the fly ash particles in the air through the filter material machinery, and form a thick ash layer on the surface of the filter material that receives the first batch of fly ash particles, which is called filter cake or feels safe in bed. This is a good filtering effect.
4. Electrostatic dust removal equipment: The working principle of electrostatic dust removal equipment is that when the flue gas passes through the electrostatic dust removal equipment with the main structure of the flue, the flue gas is positively charged, and then the flue gas enters the multi-layer cathode plate of the channel.
5. Magnetic dust removal equipment: The principle of magnetic dust removal equipment is to use conductive coils to generate magnetic fields and adsorb magnetic particles. It is mainly used for industrial waste gas, such as steel.
Extended data:
According to the principle of action, dust collectors can be divided into the following categories:
1, dry mechanical dust collector, mainly refers to the application of dust inertia, gravity and design of dust removal equipment, such as settling chamber, inert dust collector, cyclone dust collector and other high-concentration dust collectors, which are mainly used for the separation or concentration of high-concentration coarse particle dust.
2. Wet dust collectors rely on hydraulic wetting to separate and collect dust particles, such as spray towers, scrubbers, impact dust collectors and venturi tubes. , widely used in the treatment of dusty gases with high concentration and large air volume in the production process. The separation efficiency of coarse particles and hydrophilic dust is higher than that of dry mechanical dust collector.
3. The granular layer dust collector uses the accumulated layers of granular materials with different particle sizes as filtering materials, blocking the equipment for filtering the dust contained in the gas solution. Mainly used in building materials, metallurgy and other production processes, dust discharge points are often used to filter dusty flue gas with high concentration, coarse particles and high temperature.
4. Bag filter is a kind of dust removal device with fiber woven cloth or packing layer as filter medium, which has a wide range of uses, forms, dust removal air volume scale and efficiency, and is mainly used in places where fine dust is collected, that is, exhaust dust removal system and air intake system.
5. Electrostatic precipitator Electrostatic precipitator introduces dusty airflow into electrostatic field. Under the action of high voltage electric field, the gas ionizes, producing electrons and positive ions, which move to the positive and negative poles respectively. When the dust particles flow through the working electric field, they are negatively charged, move to the settling plate with opposite negative charges at a certain speed, and settle there, thus leaving the airflow and being collected in the electrostatic precipitator.