Abstract
Abstract
The subject combined with the Lingnan Gold Mine of Zhongkuang corrpany
that the low degree of automation and all of the work have to rely on the experience
of older workers to handle, it is very difficult to achieve a reasonable period of time
for drainage,causing a great waste. This system adopts GE90-30 PLC series produced
by GE, with many sensors to complete autocontrol function demanded in this system
design. Water pumps and p早elines of this system are controlled to run in turn
automatically. The number of running water pumps is confirmed by the principle of
avoiding apex and filling vale in order to economize electricity. On the spot of PC, we
use the configuration system to take charge of inspecting running state and
parameters of equipments so that feult can be found and dealt with in time. GE90-30
used Standard RS-485 to communicate with PC on the spot through Module .
This paper gives an actual control system combined with mine drainage status, the
content of this paper is in accordance with the following arrangement. Firstly ,learn
something about the current situation of mine drainage autocontrol and the structure
of mine drainage automation control system and working conditions, secondly ,
in-depth understanding the PLC model used, functions and features, making the basic
work for the design, finally, making part of the program in this system, and electrical
connections, do the theory and engineering guidance for the post-construction.
Keywords : mine drainage automation ,PLC, autocontrol
