Substantiation of choosing the design of a reactordust collector with two colliding flows
Journal Title: Восточно-Европейский журнал передовых технологий - Year 2018, Vol 3, Issue 10
Abstract
<p>The objects of this study are the dust collectors for dry gas purification ‒ devices in which hydrodynamic modes are implemented. Advantages of using such devices are: work with gases of high temperature, high degree of purification; regulation of a process of gas purification from dust due to regulation of secondary air consumption. There are no improvements for the theory of operation of apparatuses for the dry purification of a gas flow from dust. It does not provide an opportunity for a reasonable choice of the design of an apparatus and its main characteristics. We consider a design of a dust collector for dry purification of a gas flow, in which a degree of purification of a gas flow from dust reaches 97‒98.5 %, regardless of the particle size of a dispersed phase. This fact is a necessary condition for modern industry. We proposed the design of a heterogeneous reactor for a gas-solid system with two colliding flows. We determined specific features of hydrodynamics of a reactor, distribution of stay time in a reactor, and proposed a model of a reactor based on discrete Markov processes. We established experimentally that a degree of purification of a gas-dispersed flow from dust in the proposed reactor can reach 98 %. This is possible because of formation of agglomerates due to intensive interaction between particles that are larger than the particle size at the reactor inlet 3‒4 times. We proved that, compared to a suspended layer and hydrodynamic conditions in cyclones and vortex chambers, the proposed reactor has an advantage in terms of energy consumption for overcoming of resistance. This is due to the fact that in these devices spend a large proportion of energy for maintenance of particles in a suspended state, and also for pumping air through internal devices. During operation of the proposed gas-purifying dust collector, we achieved qualitative indicators, which confirm the expediency of the conducted studies and the expediency of choosing a device for dry purification of a gas flow.</p>
Authors and Affiliations
Inna Pitak, Valery Shaporev, Oleg Pitak, Nataliia Ponomarova
Keywords
Related Articles
- EP ID EP528023
- DOI 10.15587/1729-4061.2018.133324
- Views 62
- Downloads 0
Modeling a rheological anomaly in the system Na2O – SiO2 – NH3 – ZnO – H2O
<p>A universal calculation model for theoretical description of structural and physicochemical properties of aqueous solutions of modified silicates with the involvement of complexing agents is offered. The model takes...
Modeling of melting process in a single screw extruder for polymer processing
<p>We developed a mathematical model of the melting zone of a single-screw extruder for processing of polymers. The model takes into account a heat transfer of a polymer with a worm and a cylinder of an extruder (paramet...
Numerical methods for contact analysis of complex-shaped bodies with account for non-linear interface layers
<p>In order to ensure high technical characteristics of machines for various applications, it is necessary to increase the strength of the most loaded and heavy-duty elements of constructions, which are complex-shaped co...
Influence of storage duration and density of raw cotton on the mechanics of the interaction process between feeding rollers in the cleaners of large impurities
<p>We have examined influence of storage duration and the density of cotton in bale on the adhesion between impurities and cotton. We found the effect of raw cotton storage, as well as the fiber, in a compacted state, wh...
On the limited accuracy of balancing the axial fan impeller by automatic ball balancers
<p>The study explores the process of dynamic balancing of the impeller of an axial fan VО 06-300 (Ukraine) by two automatic ball balancers.</p><p>The computer simulation of the dynamics of the fan in the absence and pres...