The utility model discloses a double-roller
crusher in the technical field of
crusher equipment, and aims to solve the problems that the
safety risk coefficient of the double-roller
crusher in the prior art is relatively high, and the double-roller crusher is inconvenient to suddenly stop when an accident occurs. The crushing device comprises a first mounting bracket, a second mounting bracket, a second driving device, a controller and a sound analyzer, the first crushing roller can be close to or far away from the second crushing roller, a
microphone is mounted on the first mounting bracket and / or the second mounting bracket, the
microphone is electrically connected with the sound analyzer, and the sound analyzer is electrically connected with the controller. The analyzer, the first driving device and the second driving device are electrically connected with the controller and are used for controlling the crushing rollers to rotate and keep away from each other; according to the utility model, the
microphone is used for collecting sound, and the analyzer is used for carrying out human voice distinguishing on the sound, so that the sudden stop of the equipment and the separation of the two crushing rollers can be realized after the human voice is distinguished, the occurrence of unforeseen circumstances can be prevented in time, and the
operation safety of the equipment is improved.