Automatic positioning control method of belt pulley trolley for coal blending in coking plant

Abstract

The invention relates to an automatic positioning control system of a belt pulley trolley for coal blending. The automatic positioning control system is especially suitable for immediate address on-line detection during an operational process of the belt pulley trolley in a coal blending workshop of a coking plant and can achieve the functions of positioning and automatic walking of the trolley and the like. The automatic positioning control system is composed of an above-ground cycle encoding transmission part, a cable encoding part, an antenna part, a trolley-mounted decoding part, a single chip microcomputer software calculated address part, a PLC control part and an external connection control part. The serial address detection scheme is reliable and easy to carry out, detection speeds of system addresses can be improved, a central control room upper computer can detect the addresses in real time and transmits an address signal back to the trolley when the trolley is operated beside a sensing cable, and accuracy of automatic positioning and automatic coal blending of the belt pulley trolley can be improved.

Description

technical field [0001] The invention relates to an automatic positioning control system for a pulley trolley for coal blending, especially suitable for the online detection of the real-time address of the pulley trolley in the coal blending workshop of a coking plant during operation, and a control system for realizing functions such as trolley positioning, automatic running, and automatic coal blending. Background technique [0002] In the coal blending process of the coking plant of the iron and steel company, when the pulley trolley passes a certain position in the interval, it is necessary to detect the absolute address of the trolley at this position, which is used to record the corresponding position and coal slot number of the pulley trolley during coal blending and to stay in this coal slot It provides a reference for technicians to check the coal blending plan and conduct coal quality analysis. When the pulley trolley passes through the laid cable area, the system c...

AI Technical Summary

Problems solved by technology

The traditional trolley in-position detection has electromagnetic or infrared sensors. The disadvantage is that the installation of the sensor is troublesome. Generally, it can only provide contact signals. It has no computer communication function and cannot receive commands from other systems. The signal is affected by on-site factors. The impact is relatively large, and the automatic control function realized is limited, so the use is limited and not very flexible

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