|Industrial dust treatment equipment series|
|Welding fume exhaust gas treatment series|
|Grinding polishing dust removal equipment|
|Stand-alone dust collector|
|Spiral duct and accessories series|
A brief comparison of the performance of several types of dust collectors. Dust collectors are the main equipment for dust removal and flue gas treatment. Different dust collectors are used under different working conditions to collect dust of different properties to meet different emission requirements. Choose the appropriate dust removal method, Not only can it effectively remove dust and purify dusty flue gas, but also save users investment and maintenance costs. The performance and application scope of several common vacuum cleaners are briefly introduced below for users to refer to when choosing a vacuum cleaner. The four common types of dust collectors are described below. :
Introduction to four common types of dust removal equipment (1) Bag type dust collectors Bag type dust collectors are mainly bag type dust collectors. Bag type dust collector has become the most widely used dust removal equipment at present. Pulse bag type dust collector is the most important type of bag type dust collector. The bag type dust collector has high dust removal efficiency and can remove fine dust particles. Changes in processing air volume Adaptable, best for fine particles with recycling value. However, the bag type dust collector has a large investment, the allowable temperature is low, and the gas temperature should be higher than the dew point temperature during operation. Otherwise, not only the resistance of the dust collector will be increased, but even the dust collector will not work properly, because wet dust adheres to the dust collector. Filter bag surface. When the dust concentration exceeds the lower limit of dust explosion, the bag filter cannot be used.
Four common types of dust removal equipment (2) Cyclone dust collector The invention has low cost, convenient maintenance and management, and is especially suitable for collecting high temperature and high humidity flue gas and corrosion-resistant gas. However, the removal rate of dust particles with a particle size less than 10 μm is relatively Low. When the dust concentration in the gas is high, this type of dust collector can be used as a primary dust collector to reduce the load of the secondary dust collector. The cost of the cyclone dust collector is much lower than that of the pulse dust collector and bag dust collector. It is characterized by low price, low resistance, high efficiency, large air volume, and stable performance.
Four common types of dust removal equipment (3) Wet dust collector The manufacturing cost of wet dust collector is relatively low. It is the most ideal dust removal method for dust with moisture, stickiness and irritating odor produced in the chemical industry, paint spraying, glaze spraying, pigment and other industries. Because water can not only remove dust, but also remove some odors. If it is a harmful gas (such as a small amount of sulfur dioxide, hydrochloric acid mist, etc.), you can formulate an absorbent in the washing solution to absorb it. The disadvantage of wet dust collectors is that they use more water , Mud and wastewater need to be treated, and the equipment is easily corroded. Pay attention to freezing protection in cold areas. The wet dust collector can be used as a desulfurization dust collector by adding a desulfurizing agent to the water tank.
Introduction to four common types of dust removal equipment (4) electrostatic precipitator electrostatic precipitator, also known as "electrostatic precipitator", uses static electricity to attract light and small objects, and uses static electricity to absorb industrial dust. Compared with other dust removal equipment, electrostatic precipitators Low energy consumption and high dust removal efficiency. Suitable for removing 0.01-50 μm flue gas dust, and can be used in high flue gas temperature and high pressure places. Practice has shown that the greater the amount of flue gas treatment, the more economical the investment and operating cost of the electric precipitator. However, the electric precipitator equipment has a large investment, complex equipment, large floor area, and strict requirements for operation, operation, and maintenance management. At the same time, dust The damping ratio is also required. At present, electrostatic precipitators are mainly used in large enterprises in power plants, building materials, metallurgy and other industries with large gas volumes, strict emission concentration requirements, and a certain level of maintenance and management.