Automatic control system and automatic control method for transferring coal flows in two-stage coal bunkers of mine
An automatic control system and control system technology, applied in the fields of earthwork drilling, transportation and packaging, underground transportation, etc., can solve the problems of automatic reloading, large randomness of manual control of coal flow in two-stage coal bunkers, etc., and shorten the display content , Improve the scope of use, the effect of significant economic benefits
Inactive Publication Date: 2013-02-27
UNIV OF SHANGHAI FOR SCI & TECH
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[0006] The present invention is an automatic control system and automatic control method for a two-stage coal bunker coal flow reloading automatic control system in a mine. The problem of large randomness and the inability to be automatically reproduced by manual control of the flow, in order to improve the lump coal rate and production efficiency
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[0027] A mine two-stage coal bunker coal flow transfer automatic control system of the present invention will be further described in detail through specific embodiments below in conjunction with the accompanying drawings. Those of ordinary skill in the art will be able to understand and implement the present invention after reading this embodiment , also can realize the object of the present invention simultaneously.
[0028] Two-stage coal bunker coal flow transfer system diagram as shown figure 1 shown. The two-stage coal bunker coal flow transfer system includes control objects and micro-control MCS.
[0029] The controlled objects include two slat conveyors M1 and M2 located between the upper-level buffer coal bunker B1 and the lower-level spiral coal bunker B2, and the controllable gate V1 of the upper-level buffer coal bunker B1.
[0030] The first apron conveyor M1 is used to transfer coal from the upper buffer bunker B1 to the spiral coal bunker B2, and the second a...
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The invention relates to an automatic control system and an automatic control method for transferring coal flows in two-stage coal bunkers of a mine. The system comprises an upper-stage damping coal bunker, a lower-stage helical coal bunker and two plate conveyors, wherein each coal bunker is provided with a high-coal-position ultrasonic sensor and a low-coal-position ultrasonic sensor; the two coal bunkers are both provided with controllable strobes; the opening and the closing of the controllable strobe of the upper-stage coal bunker are controlled by a dual-acted gas cylinder that is controlled by a two-position four-way direct-current electromagnetic valve; the controllable strobe of the upper-stage coal bunker is provided with a position sensor; switching value signals of the low-coal-position ultrasonic sensor of the upper-stage coal bunker and the high-coal-position sensor switch signal and the low-coal-position sensor of the lower-stage coal bunker are connected with an input terminal of a PLC (programmable logic controller) module; driving motors of the two plate conveyors and a control coil of the electromagnetic valve are connected with a power driving unit of the control system respectively, so as to controll the automatic transfer of the coal flows; a position sensor switching value signal is connected with an input terminal of the PLC so as to judge whether the strobes are closed in place. The method and the system aim at providing the hardware structure and control strategy for the automatic control system for transferring the coal flows of the two-stage coal bunkers, thus improving the lump coal rate and the production efficiency.
Description
technical field [0001] The invention relates to the field of automatic control of coal flow reloading, in particular to an automatic control system and automatic control method for coal flow reloading in mine two-stage coal bunkers. Background technique [0002] The lump coal rate directly affects the selling price of commercial coal. At present, the price of lump coal in the domestic market is nearly double that of similar end coal. Therefore, increasing the lump coal rate is an effective way to improve the economic benefits of enterprises. The loss of lump coal is directly related to the way of falling coal during transportation and reloading and the drop of reloading point. As a necessary reloading and buffering link in the underground coal transportation process, the coal bunker has a large drop and serious loss of lump coal, especially when the bunker is empty. In order to increase the lump coal rate in the process of warehousing, various coal industry groups not only ...
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IPC IPC(8): E21F13/00
Inventor 李海英宋建成许维东
Owner UNIV OF SHANGHAI FOR SCI & TECH