Research on modelling and stability of seamless dust removal system based on generalized system

Abstract

The dedusting system is the parameter selection and the degree of cooperation between several dust collector components. The stability of the system plays a decisive role in the dust removal efficiency of the whole system. The existing dust removal system model is a mechanism model, and the bag size, filter bag distribution and other parameters are optimized by simulation results. It cannot provide a model reference for the use of a new filter bag. In this research, the generalized model of the dust removal system is established by MATLAB. The factors affecting the service life of filter bag and dust removal efficiency of dust removal system are analysed. A differential equation is used to describe the influence of these factors. The dynamic model of the dust removal system is established. When considering the problem of flue gas emission, the algebraic equation with dust is constructed. The model of the bag-type dust removal system is described by a generalized system. Finally, the model’s stability is analysed using the method of generalized system analysis, and the necessary and sufficient conditions for the stability of the model are obtained. Given the advantages of a seamless filter bag in filtration efficiency and mechanical properties, the stability of the system is studied. The results show that the system stability increases by 55.4% and 41.9% respectively. The performance of the filter bag is introduced into the modelling of the dust removal system, which plays a key role in the overall evaluation of the filter bag.