Discharge characteristics of cohesive fine coal from aerated hopper

An investigation of the effect of particle size on discharge behavior of pulverized coal

“…However, there are several well-known problems in the handling and storage of pulverize coal, such as bridging, channeling, fluctuating flow rate or even blocking in processing equipment and storage, as the tendency of agglomeration caused by strong inter-particle forces [3][4][5]. The most common and serious problem is no-flow, due to arching or ratholing [6,7]. Thus, reliable information of flow properties of the pulverized coal concerned is required for reliable flow from the hopper, which is essentially crucial in handling and processing operations [8,9].…”

Effect of Operating Conditions and Powder Properties on Pneumatic Conveying Characteristics of a Top Discharge Blow Tank

“…Due to the different geographical environment, production technique, and applications, pulverized coal has a wide range of particle diameter distribution and moisture content, both of which greatly influence its flow property [16]. Pulverized coal is widely used in coal gasification, coal-fired power generation, and other chemical industry applications.…”

“…Most research is focused on the discharge characteristics of bottom discharge blow tanks [13][14][15][16][17][18]. Most research is focused on the discharge characteristics of bottom discharge blow tanks [13][14][15][16][17][18].…”

Predictive model for corn flour discharge rates through an aerated hopper

“…the outlet area) on mass flow rate is reduced [29,30]. Then, similarly to Huang et al [29], K', another experimental coefficient, was introduced:…”

“…Several models for predicting the aerated flow of bulk solids were developed also for cohesive powders, where, under certain conditions, the aeration may instigate the failure of cohesive arches and /or the collapse of stable rat-holes [26][27][28][29][30].…”