Clean automatic coke-bin material monitoring and alarm device of heat-recovery coke oven

The invention discloses a clean automatic coke-bin material monitoring and alarm device of a heat-recovery coke oven, which comprises a radar sensor, an intelligent measuring and controlling instrument and an automatic alarm device, wherein the radar sensor is positioned above a coke bin, and the intelligent measuring and controlling instrument is respectively connected with the radar sensor and the automatic alarm device through circuits; and a protecting device for protecting the radar sensor from high-temperature and electromagnetic interference is arranged on the radar sensor. The clean automatic coke-bin material monitoring and alarm device realizes accurate control on the distance between a coke-bin inner material and hard coke in the coke bin and a bin port and completely eradicates the occurrences of a lower-limit exceeding phenomenon of the hard coke and a shutdown accident caused by coke overflowing. The clean automatic coke-bin material monitoring and alarm device can ensure that the height of a di