Aiming at the core problems of low efficiency, high labor cost and poor stability in the slag baking process of the electric slag furnace workshop, this study was guided by the actual production needs of a large domestic steel plant and successfully developed an intelligent slag baking automation system based on STM32 single-chip microcomputer and Siemens S7-200 SMART PLC. The system realizes the seamless conversion of modbusrtu and profinet protocols through the Wuya iot WTU-PNMD02 gateway, builds a distributed control network of "single-chip microcomputer master control-PLC field control-sensor real-time feedback", and integrates core functions such as fully automatic loading, precise baking, intelligent weighing, efficient transportation and safe unloading. Through hardware selection optimization, software algorithm innovation and mechatronics design, the system realizes the unmanned and intelligent slag handling process, significantly improves the efficiency, precision and safety of metallurgical production, and provides a replicable technical solution for the digital transformation of the traditional metallurgical industry.

Zhang Zuoshu, Gao Mingxin. Slag Drying and Conveying System Based on 32 Single Chip Microcomputer and PLC. Academic Journal of Engineering and Technology Science (2025), Vol. 8, Issue 3: 88-94. https://doi.org/10.25236/AJETS.2025.080313.

[1] Jia Quanzhong. Design of agricultural machinery equipment monitoring system based on STM32[J]. Agricultural Mechanization Research, 2015(08).

[2] Ding Xiaoling, Yang Cuicui, Wu Yuhong, Li Peijian, Liu Fengkai, Zhao Lixin. Research on the design of environmental monitoring and intelligent control irrigation system based on wireless network[J]. Water-saving Irrigation, 2015(07).

[3] Fan Liuwei, Gao Huifang, Wang Jianjun, Cai Liyang. Application of PLC and MCGS configuration software in pig house environment automatic control system[J]. Internet of Things Technology, 2015(02).

[4] Mei Haibin, Zhang Minghua, Huang Dongmei. Design of real-time offshore environment monitoring system based on wireless sensor network[J]. Computer Applications and Software, 2015(01).

[5] Peng Aimei, Yin Yujun, Mao Xiaoying. Design and implementation of greenhouse WSN monitoring system based on Zigbee[J]. Jiangsu Agricultural Science, 2014(12).

[6] Liu Baochuan, Zhang Qinghui, Li Junhao, Qin Mingming. Research on handheld greenhouse monitoring system based on wireless sensor network[J]. Journal of Chinese Agricultural Mechanization, 2014(06).

[7] Li Guan, Ma Jie, Bu Xiangli. Application of STM32 microcontroller in indoor environment monitoring system[J]. Automation Instrumentation, 2014(07).

[8] Cao Yuanjun, Jin Zhuo, Zhai Xujun, Wang Xinzhong. Design of wireless sensor network nodes for information collection in closed laying hen houses[J]. Anhui Agricultural Sciences, 2012(22)

[9] Liu Jia. Design of warehouse environment monitoring system based on PLC+ARM[J]. Wireless Internet Technology, 2012(04)

[10] Qin Yulong, Fu Huisheng. Design of multi-channel wireless distributed temperature measurement system based on nrf2401 chip[J]. Internet of Things Technology, 2011(09).