The broken system of hard sand

The utility model provides a hard sand breaking system, unloads and sets up conveyer belt horizontal migration's board-like feeding machine under the hole, sets up jaw breaker under the board-like feeding machine other end, and the gap of the fixed hubei province of jaw breaker board and activity hubei province board lower part is provided under to conveyer belt one end that the level was placed, and the other end is provided directly over cone crusher's the feed inlet, said cone crusher goes up the motor rotating band and moves transmission, and the transmission other end is connected with eccentric cover, and in the inboard cover placed frame of eccentric cover, the outside is connected with conical mantle mutually, and the mantle outside is provided with the solid fixed cone who fixes in the frame, and drive mechanism drives eccentric cover and rotates for the mantle in the eccentric cover outside revolves the pendulum motion inside work of solid fixed cone. A said the hard sand breaking system by provide the not breaker of one-size of two at entire system, has realized the graded crushing of bold hard sand, improves the purpose of utilization ratio of material and the loss of reduction machine.