Now, due to the country's emphasis on environmental pollution, regulations have been issued and policies and guidelines for pollution control have been proposed.Dust CollectorThus, it has gained recognition and awareness among more people. Due to the various classification methods of dust collectors, they can be categorized into numerous types, which are then used for different types of dust and under various working conditions in different enterprises. Below, we will discuss the classification of dust collectors based on their operating status.
Based on the operational status of dust collectors within dust removal systems, they can be categorized into two main types: positive pressure dust collectors and negative pressure dust collectors. According to their working temperature, they are divided into two types: ambient temperature dust collectors and high-temperature dust collectors. In terms of size, dust collectors can be classified into four categories: small, medium, large, and extra-large dust collectors.
What are positive pressure dust collectors and negative pressure dust collectors?
Positive Pressure Dust Collector: The fan is set before the dust collector, which operates under positive pressure. As the dust-laden gas passes through the fan first, it causes significant wear on the fan, making it unsuitable for high-concentration, coarse-grained, high-hardness, and highly corrosive dust.
Negative Pressure Dust Collector: The fan is placed after the dust collector, which operates under negative pressure. Since the dusty gas is purified before entering the fan, there is less wear on the fan, and this method is widely used.
Due to the new regulations and stringent requirements for pollutant emissions by the state, relying solely on one type of dust collector is no longer sufficient to meet the standards. Therefore, some enterprises are opting to install multi-stage dust removal systems, which include a combination of dust collectors with coarse particle removal in the preliminary stage and fine particle removal in the subsequent stage, to enhance dust removal efficiency.
Baghouse dust collectors are widely used worldwide for dust removal, offering high efficiency in dust collection, easy cleaning, and simple maintenance and repair.