## 2 Literature Review
### Operating Parameters of Dust Collector and Applications  
The relevant papers on the optimized operating parameters of dust collectors mostly discussed the efficiency of pulse cleaning, which can make the filter element return to a better initial state after cleaning and achieve the purpose of energy saving. In addition, some studies explored the initial pressure of the storage tank, the average static pressure or maximum pressure of the pulsed air acting on the surface of the filter, the size of the nozzle, the distance between the nozzle and the filter, the filtration speed, and so on. By changing the operating parameters such as filtration speed, compressed air pressure, and nozzle diameter, it can evaluate the cleaning effect of the pulse-jet dust collection system, and the result showed that the value of the compressed air is the main factor that directly affects the pulse cleaning, and the pulse pressure on the filter bag will not always increase as the nozzle diameter increases [27]. Research has been conducted on the influence of the filter material or the shape of the folding filter on the cleaning efficiency. For example, the filter with surface treatment has better cleaning efficiency [28]. In addition, through various parameter experiments, such as the initial tension of the filter bag, filter speed, compressed air pressure, pulse time, and nozzle shape, it explored the changes in pressure and acceleration in the filter bag. It showed the greater the pressure and acceleration on the surface of the filter bag during pulse cleaning, the better the cleaning efficiency of the system, and it is proved that the pressure of compressed air and the shape of the nozzle are the main parameters that affect pulse cleaning [29]. Moreover, the study of the wrinkle ratio of the folding filter has an impact on the cleaning efficiency in the pulse dust collector system under different cleaning modes [30]. This involves analyzing the static pressure distribution on the surface to evaluate the cleaning effect of the filter. It showed that lower static pressure on the top of the filter will lead to poor cleaning efficiency. Secondly, the higher wrinkle ratio of the folding filters is prone to incomplete cleaning [31]. In addition, the amount of residual dust is used to evaluate the cleaning effect of the system. It tested the filtration speed, peak pressure of pulse, filter size, and the other parameters and showed that peak pressure is an important factor to lead the cleaning effect of the system. The cleaning resistance caused by the filtering speed does not affect the cleaning efficiency under pressure, but the higher the filtering speed becomes, the greater the cleaning resistance when peak pressure is insufficient. This is caused by the amount of residual dust increasing, and the cleaning efficiency is not good [32]. In addition, the type of filter dust will also significantly affect the cleaning efficiency of the dust collection system [3]. Summing up the above, the influence of the pulse interval time \(T_{w}\), pulse time \(T_{p}\), and dust concentration in the process on the dust collector has not yet been discussed.