Elements for extending the service life of dust removal skeleton: The dust removal skeleton is the support of the bag filter. If the quality of the dust removal skeleton is not good, it will affect the service life of the bag filter. And if there are burrs on the dust removal skeleton, it is also easy to cause damage to the dust removal bag. So it is important to maintain and upkeep the dust removal framework on a daily basis. So how can we extend the lifespan of the dust removal framework? 1. Suitable filtering materials: based on the temperature, temperature, and chemical properties of the gas; Taking into account factors such as particle size, weight, shape, presence of abrasion, dust concentration, filtration speed, cleaning method, emission concentration, and working system of bag filter. 2. Reasonable structure: It should meet the requirements of the bag filter and dust cleaning that matches it, and be easy to install, sealed, and pursue corresponding filtering area and good filtering state, easy to clean dust while avoiding wear as much as possible. Reasonable coordination with relevant components. 3. Sewing technology: The sewing size meets the design requirements, and thermal shrinkage dimensions are reserved according to the type of filter material and usage temperature. The needle spacing of the suture is reasonable, with no skipping or breakage, and the suture meets the requirements. Reasonable coordination, no burrs or breakage that may damage the dust removal bag. 4. Correct usage method: The dust collector filter bag operates under its suitable working conditions. If the working conditions change, it should be immediately switched to the bypass or emptied to prevent adverse effects on the service life of the filter bag. 5. Correct dust cleaning method: During use, the dust area of the filter bag gradually increases and the pressure difference rises. Dust should be isolated by cleaning to maintain the pressure difference inside and outside the filter bag within the set range. How to install the dust collector frame correctly? The framework of the dust collector gradually wears out, and the main cause of wear is the grinding force of dust, the transformation of filter media caused by high temperature, and the corrosion of chemical substances. When the grinding force of dust is applied, the bottom of the bag is severely worn, and the increase in system capacity can accelerate the filtration speed and wear. Equivalent to electrostatic precipitators and cyclone dust collectors, the maintenance work of bag filters mainly involves the replacement of dust removal bags and dust removal frames. Dust removal bags and dust removal frames are important components of bag filters. When a large part of the bag is damaged, all replacement should be stopped (when the fine dust accumulated in the filter layer after long-term operation reduces its permeability and affects the system air flow, even if it is not damaged, all replacement should be stopped). When replacing the bag, it should be stopped when the dust collector stops working. At this time, the dust cleaning controller should be closed, and the top manhole door should be opened to disassemble the bag. When disassembling, first remove the bag cage, then pinch the spring ring on the upper opening of the bag into a concave shape, pull out the bag upwards, and clean the dust on the flower plate hole before installing a new bag. The dust collector frame is lightweight, easy to install and maintain, and the quality of the frame directly affects the filtration status and service life of the filter bag. The framework of the dust collector adopts silicon spraying, galvanizing, painting and other technologies, with a firm coating, which avoids the corrosion of the cage bone surface and the adhesion of the filter bag after a period of operation of the dust collector. This ensures smooth bag replacement and reduces damage to the bag during the bag replacement process. On the basis of summarizing production experience, continuously absorb technology. Produce dust collection equipment suitable for coal-fired power plants. Technical requirements for dust collector frame: The dust collector frame should be made of iron wire or stainless steel wire with sufficient strength and rigidity. Technical requirements for the framework of the dust collector: The filter bag framework should have sufficient strength, rigidity, verticality, and dimensional accuracy to prevent deformation under pressure, damage during transportation, mutual contact between the dust collector filter bags after being installed in the dust collector, and difficulty in bagging. The framework of the dust collector is not limited by the gas source conditions in the usage environment, with few vulnerable parts, easy maintenance, and operation. In this way, the problem of compressed air pulse cleaning can be overcome. The dust collector skeleton overcomes the defects of uneven welding points and easy abrasion of cloth bags caused by manual welding. Simple structure and low power consumption. The disadvantages are that it is prone to fire alarms, the filter bag is prone to condensation, the amount of air filtered per unit area is small, and a large amount of filter cloth is required. In a short period of time after cleaning, the filtered air contains dust, and the working conditions are poor. As the rib of the bag filter, the dust collector frame is easy to install and maintain, so when using and testing the bag filter, the quality of the dust removal frame directly affects the service life of the bag filter. So, when inspecting the dust removal skeleton, there are several key points to pay attention to: whether the dust removal skeleton is fully galvanized in one molding, with a smooth and straight surface, no burrs to prevent damage to the filter bag, uniform welding, reasonable structure, and other characteristics. The trapezoidal skeleton adopts a flat structure, and the longitudinal bars and back support rings of the trapezoidal skeleton are evenly distributed and have sufficient strength to prevent damage and deformation. In order to improve the strength of the steel wire and enhance the appearance quality, we use a diameter of 6.5 yuan steel for drawing (drawn into a diameter of 3mm), and then grind it to meet the technical requirements when assembling it as a whole on the welded tire.
