scholarly journals Automatic control of the sand granulation process to improve homogeneity in the manufacture of ceramic tiles

2021 ◽  
Vol 24 (2) ◽  
pp. 762
Author(s):  
Guillermo Morales-Romero ◽  
Adrián Quispe-Andía ◽  
Beatriz Caycho-Salas ◽  
Nicéforo Trinidad-Loli ◽  
César León-Velarde ◽  
...  
Keyword(s):  
Control System ◽  
Automatic Control ◽  
Automatic Control System ◽  
Control Strategy ◽  
Dispersion Model ◽  
Water Spray ◽  
Sequential Injection ◽  
Present Value ◽  
Ceramic Tiles ◽  
Granulation Process

The purpose of this article is to quantify to what extent the design of an automatic control system for the clay sand granulation process will improve the percentage of homogeneity in the manufacture of ceramic tiles, through the analysis of the percentage of dust moisture. For which the process under study is initially described, identifying its stages, the control strategy to be used and its main characteristics. After conducting the research, it was determined that from the proposed control strategy, in which the flow of clay sand is controlled through frequency variators and the sequential injection of water spray through electric nozzles, it was achieved improve the homogeneity percentage by 94.78%, achieving that the error between the desired value and the present value of the humidity percentage is 0.015%, the approximation to the desired value or setpoint value being significant. Thus, it was also possible to determine that through an analysis of the dispersion model, that the collected data respond to a constant; evidencing that there is no sudden variation in the percentage of homogeneity during the automated operation of the process, which validates the improvement of homogeneity in the manufacture of ceramic tiles.

Design of the Visualization Automatic Control System on the LPG Shuttle Kiln

2013 ◽  
Vol 670 ◽  
pp. 26-30
Author(s):  
X.J. Wang ◽  
X.G. Fu
Keyword(s):  
Control System ◽  
Automatic Control ◽  
Automatic Control System ◽  
Control Strategy ◽  
Visualization System ◽  
Temperature Transducer ◽  
Machine Interface ◽  
Man Machine Interface ◽  
Intelligence Control ◽  
And Control

By the design of the visualization system of the LPG shuttle kiln, the friendly man-machine interface is achieved, which is helpful for the change, expansion and upgrade of the system. It is studied that the general schemes of the visualization automatic control system of the LPG shuttle kiln in this article. The choice of the hardware devices, especially the system nucleus units including temperature transducer, A/D or D/A intelligent module, RS232/485 converter, relay, actuator, etc, and the connection and control strategy of the hardware of the control system, is analyzed emphatically. A/D or D/A intelligence module, RS232/485 converter, relay, actuator, the joint and control strategy of the hardware of the control system, etc. With the widely application of the intelligence control system, the foreground of the visualization system of the shuttle kiln will be better and better.

Investigation of the stability of periodic motions in a nonlinear automatic control system based on the fast fourier transform

2003 ◽  
Vol 3 ◽  
pp. 297-307
Author(s):  
V.V. Denisov
Keyword(s):  
Fourier Transform ◽  
Control System ◽  
Automatic Control ◽  
Fast Fourier Transform ◽  
Automatic Control System ◽  
Resonance Phenomenon ◽  
Periodic Motions ◽  
Multiply Connected ◽  
Non Linear ◽  
The Stability

An approach to the study of the stability of non-linear multiply connected systems of automatic control by means of a fast Fourier transform and the resonance phenomenon is considered.

scholarly journals Results of Laboratory Studies of the Automated Sorting System for Root and Onion Crops

Agronomy ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 1257
Author(s):  
Alexey Dorokhov ◽  
Alexander Aksenov ◽  
Alexey Sibirev ◽  
Nikolay Sazonov ◽  
Maxim Mosyakov ◽  
...  
Keyword(s):  
Control System ◽  
Automatic Control ◽  
Automatic Control System ◽  
Technological Parameters ◽  
Post Harvest ◽  
Manual Sorting ◽  
Sorting System ◽  
Working Bodies ◽  
Automatic Removal

The roller and sieve machines most commonly used in Russia for the post-harvest processing of root and tuber crops and onions have a number of disadvantages, the main one being a decrease in the quality of sorting due to the contamination of working bodies, which increases the quantity of losses during sorting and storage. To obtain high-quality competitive production, it is necessary to combine a number of technological operations during the sorting process, such as dividing the material into classes and fractions by quality and size, as well as identifying and removing damaged products. In order to improve the quality of sorting of root tubers and onions by size, it is necessary to ensure the development of an automatic control system for operating and technological parameters, the use of which will eliminate manual sorting on bulkhead tables in post-harvest processing. To fulfill these conditions, the developed automatic control system must have the ability to identify the material on the sorting surface, taking into account external damage and ensuring the automatic removal of impurities. In this study, the highest sorting accuracy of tubers (of more than 91%) was achieved with a forward speed of 1.2 m/s for the conveyor of the sorting table, with damage to 2.2% of the tubers, which meets the agrotechnical requirements for post-harvest processing. This feature distinguishes the developed device from similar ones.

scholarly journals Stability study of digital multi-connected automatic control system

2021 ◽  
Vol 1864 (1) ◽  
pp. 012039
Author(s):  
B. G. Ilyasov ◽  
G.A. Saitova ◽  
A.V. Elizarova
Keyword(s):  
Control System ◽  
Automatic Control ◽  
Automatic Control System ◽  
Stability Study
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