This work presents experimental results of the drawdown of floating solids in agitated vessels. The effect of an agitator type, its location in the tank, and dispersed phase properties on minimum values of agitator speed and power requirements for floating solids suspension was investigated. The results were processed as dimensionless correlations using the Froude number and modified Reynolds number. A comparison was made between classical stirred tanks (with single or dual impeller systems) and a vibromixer agitated by a single, reciprocating disc. The tests showed that given an appropriate selection of disc diameter and off-bottom clearance, the power consumption for drawdown of floating solids in a vibromixer can be halved, compared to a classical stirred tank.

The article offers a systematic approach to the method of developing mathematical models of a chemical-technological system (CTS) in conditions of deficit and fuzziness of initial information using available data of various types. Based on the results of research and processing of the collected quantitative and qualitative information, mathematical models of the reactor are constructed. Formalized and obtained mathematical statements of the control problem for choosing effective modes of operation of technological systems are based on mathematical modeling. Based on the obtained expert information, linguistic variables were described and a database of rules describing the operation of the input parameters of the reactor unit of the catalytic cracking unit was obtained.

No abstract

No abstract

No abstract