Innovative solution of coal slurry mixer
Journal Title: Mining – Informatics, Automation and Electrical Engineering - Year 2017, Vol 531, Issue 3
Abstract
During the coal-enrichment process in mechanical processing plants, fine-grained high-moisture coal slurries are produced. These waste products may be used in energetic blends after a special moisture-reducing treatment. Therefore, coal slurry pelletizers are produced (among other things). In the Department of Mining, Dressing, and Transport Machines, a project of a prototypical installation for coal slurry pelletization with a capacity of 50 Mg/h was constructed. The main part of the installation is the mixer. At its bottom part, an opening is placed that is closed by a metal plate. During the pelletization work, a plate is half-opening and rotates around its own axis. The rotation of the drum and agitators installed inside the mixer causes sludge grinding and its homogenization. A properly working drum closure system is important for the proper exploitation of the mixer. The designed mechanism allows us to lower the plate linearly in the first phase and then turn it with a predetermined angle after the complete removal of material from the drum. The project required an examination of the kinematics of the system and determination of the drive system load, which allowed us to designate the working parameters. This paper presents the course of the taken actions and results of the fundamental research, along with their analysis. A selection of optimum design and exploitation parameters was performed on the basis of the graphical synthesis method, created simulation model, and tests of the prototype device.
Authors and Affiliations
Jacek Feliks
Keywords
Related Articles
- EP ID EP287694
- DOI 10.7494/miag.2017.3.531.113
- Views 152
- Downloads 0
Monitoring of loads in arch support with wire strain gauge
A concept of measuring the load and geometry of a roadway support with the use of vibrating wire strain gauges and draw-wire sensors is presented. Laboratory and in-situ tests of complete frames of arch supports under lo...
Diagnostics and monitoring of microprocessor-controlled excitation power supply unit for synchronous motors
This article presents a excitation power supply unit for synchronous motors with a microprocessor control system. The theoretical basics of reactive power regulation with a synchronous motor and influence of load on the...
Control of hydrogen concentration in the power supply and control systems of a mining battery locomotive with energy recuperation applied
Better efficiency of mining machines is one of the major objectives pursued by developers, manufacturers and users, as it refers directly to functional and economic aspects of these machines exploitation. In the case of...
Experimental investigation of dynamic impact of roadheader on floor
This article presents the selected results of experimental examinations performed on the test stand in the Technological Hall of the Faculty of Mining and Geology at the Silesian University of Technology in which an R-13...
Input signals disturbances of controllers in a field-oriented control system with a slip-ring motor and their impact on rotational speed
In the article the authors investigated a field-oriented control system with a slip-ring shaded-pole motor. Additive disturbing signals were introduced into input signals of the control system controllers. The rotational...