Industrial dust removal equipment quality appraisal

industrial dust removal equipment is based on the core principle of multi-stage filtration and dynamic dust cleaning synergy. By optimizing filtration wind speed, dust cleaning efficiency and system resistance, it achieves synergy of dust collection rate, emission concentration and energy consumption control. It is widely used in the field of smoke and dust control in industries such as steel, cement, chemical industry and wood processing. In high-temperature flue gas treatment, it is used for electrostatic collection of high specific resistance dust; in high-humidity environments, it meets the stable operation of anti-condensation filter media; in sticky dust scenarios, it ensures precise control of the cleaning cycle. Compared with traditional dust removal equipment, industrial dust removal equipment has the characteristics of modular design, intelligent monitoring and low maintenance costs, and is a key equipment for industrial clean production.

Zhongke Testing is a product quality appraisal service organization registered with the court. It can provide quality appraisal services for industrial dust removal equipment. It has a professional appraisal team and advanced instruments and equipment to provide fair and accurate appraisal results for the quality appraisal of industrial dust removal equipment.

With the strengthening of environmental protection law enforcement, there has been a significant increase in related quality dispute cases. The judicial dispute focuses on:

1, performance indicator dispute: excessive emission concentration, filter bag damage rate;

2, material defects: filter material PTFE coating bonding strength, box weld porosity;

3, process problems: plate flatness deviation, pulse valve response delay;

4, contract performance dispute: core modules (such as imported electromagnetic pulse valves, intelligent control system versions) are inconsistent with the technical agreement.

Industrial dust removal equipment litigation quality appraisal mainly includes the following technical methods:

1. Appearance inspection of the equipment

Conduct a comprehensive inspection of the appearance of the equipment, including the overall structure of the equipment, welding parts, and the installation of parts. Check for obvious damage, deformation, corrosion, etc., which may affect the performance and safety of the equipment.

2, performance indicator detection

detects various performance indicators of the equipment, such as processing air volume, dust removal efficiency, emission concentration, equipment resistance, etc. Through actual testing data, it is judged whether the equipment meets the performance requirements agreed in the contract.

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A steel plant of the applicant signed an "Electric Furnace Flue Gas Dust Removal System Procurement Contract" with an environmental protection company of the respondent, stipulating that particulate matter emissions are ≤15mg/m³. After being put into production, the actual measurement reached 50mg/m³. The manufacturer argued that it was caused by incorrect operating parameters.

identification analysis results:

The quality analysis expert group discussed and comprehensively analyzed the relevant information of "industrial dust removal equipment", contract technical agreements, on-site investigation case materials and other data, and made the following qualitative analysis Quantitative analysis opinion:

The bonding strength of the filter material coating of the industrial dust removal equipment involved in the case is only 30N/5cm (agreement ≥50N/5cm), the pulse valve injection pressure is only 0.2MPa (agreement ≥0.3MPa); the air leakage rate of the box is 8% (agreement ≤2%), resulting in secondary dust.

The appraisal conclusion determined that material defects and design omissions were the main causes of excessive emissions.

Industrial dust removal equipment quality appraisal report should include:

1, appraisal purpose (such as environmental penalty attribution, performance verification) and reference standards;

2, involved equipment model, filter bag batch, operation log;

3, detection method and equipment cleaning Single sheet (such as dust meter, SEM);

4, analysis of the correlation between test data and failure (such as the impact of air leakage rate on emissions);