What are the main industrial dust removal equipment?
Industrial dust removal equipment is used in the recovery and reuse of dust purification bodies and dust-containing gases in the workshops in industries such as metallurgy, mining, building materials, foundry, chemicals, tobacco, electronics, asphalt, cement, machinery, grain, machining, boilers, flour production and other industries .
Industrial dust removal equipment is mainly an important means to ensure the integrity of the equipment and maintain stable performance of the dust removal equipment. The following is introduced by Xiaobian.
1. Mechanical dust removal equipment includes gravity dust removal equipment, inertial dust removal equipment, centrifugal dust removal equipment, etc. The mechanical dust collector has a relatively low cost, simple maintenance and management, simple structure and high temperature resistance, but the removal rate of particles below 5 μm is not high. It is often used as pre-dust removal in two-stage dust removal system, discharge separator in pneumatic conveying system and dust removal of small industrial boilers.
Second, the wet dust collector uses water as the dust removal medium, and the dust removal efficiency can generally reach more than 95%. Among them, the Venturi dust collector has a dust removal efficiency of more than 99%, but it has high energy consumption. Wet dust collector can handle high temperature, high humidity flue gas and dust with certain viscosity, and can also purify some harmful gases, such as cyclone water film dust collector and wet desulfurization reaction tower. Its main disadvantage is that it will generate waste water and must be equipped with water treatment facilities to eliminate secondary pollution. Secondly, it is necessary to pay attention to the corrosion of the equipment, and anti-freezing measures must be taken in cold areas; when processing high-temperature smoke, white smoke will be formed, which is not conducive to diffusion. Wet dust removal is also suitable for purifying flammable and explosive gases, such as gas purification.
3. Filter type dust removal equipment includes bag dust removal equipment and particle layer dust removal equipment. The baghouse dust removal efficiency can reach more than 99%, which can meet environmental protection requirements; it can also better adapt to the fluctuation of the exhaust air volume; it is more economical when recovering valuable fine-grained materials, but the initial investment is high. Bag dust collectors are often used for the purification of dusty air in furnaces containing dusty flue gas or powder. It is mostly used for gas purification in metallurgy, cement, chemical, light industry and other industries, without being restricted by air volume.
Fourth, electrostatic precipitators have been widely used as dust removal equipment for various industrial furnaces and large boilers in thermal power stations, which can handle high temperature and high humidity flue gas. Its high dust removal efficiency can reach more than 98%; it has a large air volume and low running resistance. However, its structure is complex, the initial investment is high, the floor area is large, the operation, operation, maintenance and management requirements are high, and it is more sensitive to dust specific resistance.
5. Washing type dust removal equipment includes water bath dust removal equipment, foam dust removal equipment, venturi tube dust removal equipment, and water film dust removal equipment.
The above three points are about the classification of industrial dust removal equipment, related searches: industrial dust removal equipment, industrial dust collector, spiral duct