Blocking device for pulverized coal distribution branch pipe of blast furnace using vibration frequency

摘要

The present invention relates to a device that detects leakage and blockage of pulverized coal conveying pipes using vibration frequencies of 34 pulverized coal distribution pipes in a blast furnace, and prevents and penetrates them completely. Particularly, pulverized coal inside the distribution pipe 5-1. The vibration detector 16 which detects the vibration when this flows and changes it into a voltage, and the amplifier 22 which amplifies the minute voltage from the vibration detector 16 so as to be electrically controlled, and the amplified voltage is constant. Filter 23 for filtering the voltage of the range and the controller 24 for converting the voltage passed through the filter 23 into a frequency and the converter for converting the voltage passed through the filter 23 into a digital value ( 25), a vibration detector comprising an instrumentation computer 26 for displaying the digital value, and open when the magnitude of the frequency is below a certain level and mixed with pulverized coal. The control valve 17 and the air flow meter 29, the pressure gauge 20 for detecting the pressure of the distribution tank 7 and the pressure of the washing air, the pressure control control valve 19, and the pulverized coal, The air washing unit is composed of a dilution tank 14 which is diluted and supplied to the distribution branch pipe 5, and the load cell 13 detects the amount of pulverized coal discharged from the pulverized coal storage tank 12 and calculates the basis weight as a digital value. An apparatus for preventing pulverization of pulverized coal distribution branch pipes using a vibration frequency, characterized in that it comprises an emission calculation unit composed of a load cell operator 27 and a control panel 28 for controlling all the above operations.;The present invention of the above-described configuration not only detects and prevents clogging of distribution pipes early, but also compares the amount discharged through the distribution pipes with the amount of pulverized coal leaving the storage tank, thereby detecting the leaking phenomenon of the transfer pipes, and effectively pulverizing coal dust. It saves unnecessary time due to input and maintenance and prevents environmental pollution by pulverized coal.