Bag type dust collector quality appraisal

bag dust collector is a common pollution control equipment used to purify particles and fine particles in gas. The main part of the bag dust collector is the filter bag, so it is called bag dust collector. Its most basic structure usually consists of a box, a filter bag and a dust cleaning system.

bag dust collector is mainly used for the purification of dust and particulate matter. The processing objects include various industrial waste gases, waste materials and powders. Common application scenarios include chemical, pharmaceutical, metallurgy, ceramics, drying and other industries. Bag dust collector has the characteristics of high efficiency, economy and energy saving, so it has been widely used in industrial manufacturing processes.

Zhongke Testing and Appraisal Institute can provide bag dust collector quality appraisal services and make accurate appraisals in terms of product design analysis, load analysis and product quality analysis.

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bag dust collector can be divided into: upper air intake type dust collector, lower air intake type dust collector

According to the filtration method, it can be divided into: inner filter type dust collector, external filter type dust collector

According to the pressure classification in the dust collector, it can be divided into: negative pressure dust collector, positive pressure dust collector

According to the shape of the filter bag, it can be divided into: round cloth Bag dust collector, deformed bag dust collector, special-shaped bag dust collector

can be divided according to the dust cleaning method: mechanical vibration dust cleaning type dust collector, reverse blowing dust cleaning bag type dust collector, pulse dust cleaning bag dust collector

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GB/T 6719-2009 Technical requirements for bag dust collector

GB/T 29154-2012 Bag dust collector for coal-fired boilers

GB/T 25233-2010 Grain and oil machinery Bag dust collector

GB/T 35184-2017 Technical requirements for design and installation of filter unit for bag dust collector

GB/T 33017.3-2016 Technical requirements for evaluation of high-efficiency air pollutant control equipment Part 3: Bag dust collector

0JB/T 14856-2023 High temperature bag dust collector

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2JB/T 14495-2023 Blast furnace gas bag dust collector

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4JB/T 11261-2023 Coal-fired power plant boiler exhaust gas treatment Filter material for bag dust collector

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6JB/T 8533-2023 Rotary backflush bag dust collector

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8JB/T 8532-2023 Pulse injection bag dust collector

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A chemical company (referred to as the applicant) and an environmental protection equipment company (referred to as the respondent) filed a lawsuit in the XX People's Court due to a contract dispute.

Our company was entrusted by the court to undertake the quality analysis work of the dust removal efficiency of the bag dust collector involved in this case.

Identification analysis results:

The quality analysis expert group conducted relevant information, on-site investigation and inspection, and inspection and testing data on the "bag dust collector" involved in the case. After discussion and comprehensive technical analysis, the following quality analysis opinions were made:

Through on-site investigation, it was confirmed that the dust removal efficiency was not up to standard, the current status of the filter bag was recently replaced, and the sampling test results showed that the material and specification model were consistent with the technical agreement.

0 Based on the on-site investigation, the bag dust collector is equipped with a total of 207 bags, the fan air volume is 19641-25240m3/h, and the detected bag diameter × length is Φ187.68×2004.50mm.

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2 shows that the number of 207 cloth bags equipped with the dust collector involved is too small, and the total filtration area is too small, resulting in too high filtration wind speed, which will reduce the efficiency of the dust collector and increase the wear of the bags.

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