Multiphase integrated dust removal technology

Abstract

The invention discloses a multiphase integrated dust removal technology, and relates to the technical field of industrial dust removal. Based on a multiphase fluid dynamics theory, deepest causes andmechanisms of dust generation and motion are disclosed, the source of dust occurrence can be found, and support is provided for effective governance of dust particles; the technology is based on fourdust removal principles and five core dust removal technologies, problems during current dust governance can be solved from the angle of deepest physical mechanics of dust motion, and the technology can be applied to research and development of dust governance equipment in all links of different industrial production material transportation systems; and in addition, the technology can form the setof multiphase fluid dynamics theory which discloses the dust motion law, predicts motion mechanisms such as dust emission, dust deposition, gas and dust mixing, and gas and dust blasting, can solve all types of dust-related puzzling problems for industrial production, and provides a theoretical basis for transformation of the related equipment.

Description

technical field [0001] The invention relates to the technical field of industrial dust removal, in particular to a multiphase comprehensive dust removal technology. Background technique [0002] With the progress and development of society, the awareness of energy conservation and environmental protection has gradually become popular among the people, and enterprises have gradually treated environmental protection management as a top priority. However, in many industrial production processes today, such as thermal power plants, steel mills, cement plants, mining plants, food processing plants, etc., material transportation through belt conveyors is the most important link in industrial production. A large amount of dust will be generated during operation or in the process of alternating with other production links, which will have a huge impact on the health of on-site operators. At the same time, combustible particles mixed with gas to form aerosols are very easy to explode...

AI Technical Summary

Problems solved by technology

However, the bag dust removal technology must rely on the filter bag to filter the dust and establish the equipment space for the filter bag. At the same time, the size of the filter bag is directly related to the amount of smoke and dust. Therefore, the dust removal efficiency of this technology is low, the floor area is large, and the cost is high. , complex dust removal, limited service life of filter bags, heavy maintenance workload, high maintenance and operation costs

In addition, for the dust removal of the conveying system, stable and effective extraction of dust gas is the main challenge for bag dust removal

[0005] The second generation is electrostatic precipitator technology. Electrostatic precipitator technology must rely on high-voltage electric field to ionize gas. Therefore, the electric field is sensitive to changes in external conditions during the generation process. At the same time, high-resistance dust and secondary dust have a significant impact on the electrostatic precipitator. It must be installed Ash unloading system, which is prone to secondary pollution

[0008] To sum up, the existing four major dust removal technologies are basically used to deal with areas where dust gas is sufficiently collected, such as coal-fired flue gas dust treatment, etc. For dust in material transportation, there are many dust sources, The pressure distribution of the airflow is uneven, and the material, gas, and dust are mixed in multiple phases and their transformation is complicated. The current single dust removal technology can no longer complete effective treatment.

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