Design Of Iron Ore Pulp Grade Information Detection System

In recent years,China's economy has maintained a high level of operation,and the demand for iron and steel in the construction of social infrastructure has been strong,and the corresponding demand for raw materials such as upstream iron ore has increased.Although China's iron ore output has been increasing significantly,there are many poor iron ore mines,and there is still a large gap in the size of finished iron ore with high iron content,so it is largely dependent on the purchase of foreign ore to supplement it.In order to reduce China's dependence on imported iron ore,it is imminent for domestic ore dressing companies to increase iron ore production and ore dressing level.The development of efficient,fast and highprecision online or real-time monitoring equipment for iron ore dressing has become a top priority.Aiming at the above problems,the paper studies the detection method of iron grade in iron ore pulp information.The main research contents are as follows:First,the thesis selects the magnetite slurry as the research object.Starting from the ferromagnetism of the iron ore slurry,the electromagnetic field theory is used to establish a mathematical model of the magnetic field distribution inside the energized solenoid coil.The beneficiation process was analyzed,and the requirements of the beneficiation process for the pulp information collection and detection device were clarified.Secondly,the pulp sampler structure is designed according to the requirements for pulp detection at the industrial beneficiation site.Deepworks slurry sampler and pipeline slurry sampler were designed using Solidworks software.The sampler is equipped with a pulp collection mechanical structure and acts as a probe for the pulp grade sensor.The purpose is to perform automatic information collection based onthe single sampling function of the traditional sampler,and to achieve the detection of iron ore pulp grade information in combination with the corresponding detection system.Finally,according to the input and output characteristics of the solenoid type self-inductive sensor in the information acquisition device,the software and hardware design of the information detection system is completed,and the experimental test and data analysis are performed.Among them,the hardware design includes an excitation module mainly based on DDS waveform generation technology;a signal conditioning module consisting of an amplification link,a filtering link and a detection link;an information control module consisting of a STM32 minimum system;and a system power module.Software design includes software design of the excitation module and software design of the information control module.Based on this,the pulp sensor coil is designed and manufactured,and multiple sets of samples with known grades are selected to complete the experimental test and data analysis.The thesis studies the iron ore pulp grade information detection method and intelligent information technology,designs the mechanical structure of the ore pulp collection such as pipeline sampling and tank sampling,designs experimental analysis data to obtain the relationship between the ore pulp grade and the output of the detection system,and completes the iron ore pulp grade detection method.Research and testing system design.It provides a new testing method for the automatic detection of iron ore beneficiation,and has a promotion effect on the realization of the automatic test of iron ore beneficiation.