Crushing and conveying device for fused magnesia raw mineral aggregate

The invention relates to the technical field of conveying equipment, in particular to a fused magnesia raw mineral aggregate crushing and conveying device which comprises a crushing box, a screening structure, a telescopic air cylinder and a repeated structure, a crushing chamber and a screening chamber are arranged on the upper portion and the lower portion of the crushing box, the telescopic air cylinder is fixedly installed on the outer side face of the crushing box, and the repeated structure is movably arranged on the outer side face of the crushing box. The top of the repeated structure is fixedly connected with the output end of the telescopic air cylinder, the screening structure is obliquely arranged in the screening chamber, a feeding port and a discharging port are formed in the crushing box in a vertically spaced mode, the discharging port is located at the lower end of the screening structure, the screening structure comprises a screening frame and a screening net, and the screening net is detach