Automatic dreg discharge control system for extraction workshop in Chinese herbal medicine manufacturing industry

[0015] An automatic slag discharge control system in the extraction workshop of the Chinese medicine manufacturing industry. This system has two main control methods: console control and local control box control, as well as remote fine-tuning auxiliary control, including console, local control box, inverter cabinet, High-definition camera, voice alarm box, position fine-tuning remote control and sensors. The operation console and the inverter cabinet are set in the control room, the local control box and sensors are set on the slag discharge site, the high-definition camera and the voice alarm box are set on the slag discharge truck, and the position fine-tuning remote control is controlled by the on-site staff.

[0016] The operating console is the main control part of the system, and each production line is equipped with a set of independent operating consoles. Including PLC, power switch, relay, hard disk recorder, indicator light, liquid crystal display, video display, changeover switch, button. When working, the switch of the console is turned to the "centralized control" button; when a certain number of extraction tank needs to be slag, press the "call" button on the local control box, the "call" button, the call signal is fed back to the operation On the stage, after the operator presses the "start" button on the console, the slag tapping truck drives from the starting position at the set speed of 1.1m/s to the previous nearby extraction tank arrival point, and then starts to decelerate through the sensor signal , And then slowly drive at 0.5m/s to the "call" extraction tank to stop accurately. After the slag discharge truck is stopped, if the parking position is deviated, the on-site staff can press the "forward", "backward" and "stop" buttons on the local control box according to the actual position of the slag discharge. The method of fine-tuning realizes the accurate positioning of the slagging truck. You can also press the "forward", "backward", and "stop" buttons on the position fine-tuning remote control to realize the accurate positioning of the slag discharge truck by fine-tuning.

[0017] After the extraction tank is discharged, press the "start" button on the local control box, and the start signal is fed back to the operation console. After the operator presses the "start" button on the operation console, the slag discharge truck presses the setting Drive towards the unloading point at a fixed speed of 1.1m/s. There is a deceleration sensor 5 meters before the slag discharge point to control the slag discharge truck, and then decelerate to the slag discharge point at 0.5m/s, receive the sensor signal from the slag discharge point, and stop stably. After stopping for 3 seconds according to the set time, the slag discharging truck starts to unload the slag automatically, and the slag discharging time is less than 10 seconds. After that, the slag tapping truck is reset and automatically returns to the starting point to stop and wait, complete a slag tapping cycle controlled by the console, and wait for the next "call".

[0018] The on-site control box is the on-site on-site control part, each production line is provided with several extraction tanks, and each extraction tank is matched with a local control box. The local control box is equipped with power indicator light, sprinkler indicator light, centralized control/local switch, "call" button, "forward" button, "back" button, "stop" button, and "back" button , "Sprinkling start" button, "Sprinkling stop" button. When working, first turn the centralized control/local switch to the "local" position. When a certain extraction tank needs to discharge slag, press the "call" button on the local control box, and press the slag discharge truck from the starting position. After driving at the set speed of 1.1m/s to the location of the previous nearby extraction tank, it starts to decelerate through the sensor signal, and then slowly travels to the "calling" extraction tank location at 0.5m/s and then stops accurately. , Waiting for slagging. After the slag discharge truck is stopped, if the parking position is deviated, the on-site staff can press the "forward", "backward" and "stop" buttons on the local control box according to the actual position of the slag discharge. The method of fine-tuning realizes the accurate positioning of the slag truck. You can also press the "forward", "backward", and "stop" buttons on the position fine-tuning remote control to realize the accurate positioning of the slag truck in a fine-tuning manner. You can also press the "forward", "backward", and "stop" buttons on the position fine-tuning remote control to realize the accurate positioning of the slag truck in a fine-tuning manner.

[0019] The switch input points of the inverter cabinet include: frequency conversion, power frequency conversion, inverter start, inverter forward operation, inverter reverse operation, power frequency forward operation, and power frequency reverse operation. The switch output points of the frequency converter include: frequency converter operation, frequency converter failure, frequency conversion, power frequency, power frequency forward feedback, power frequency reverse feedback. Inverter analog input: 4-20mA input.