This utility model discloses a laboratory mineral crushing device, including an upper crushing disc, a lower crushing disc, a receiving bin, and a motor. The upper crushing disc is horizontally positioned and connected to the receiving bin, while the lower crushing disc is horizontally positioned and rotatably connected to the receiving bin. A V-shaped crushing chamber is formed between the upper and lower crushing discs, with the
diameter of the V-shaped crushing chamber gradually decreasing towards the outer edge. An inlet
pipe communicating with the V-shaped crushing chamber is provided on the upper crushing disc, and the
power output end of the motor is connected to the outer end of the extension shaft of the lower crushing disc. This device utilizes the combined action of the fixed upper crushing disc and the rotatable lower crushing disc, and leverages the
centrifugal force generated by the lower crushing disc to crush and
grind the material entering the V-shaped crushing chamber, thus overcoming the lack of fine material
grinding function in traditional laboratory pulverizers. Furthermore, the central space of the V-shaped crushing chamber is larger than the side space, ensuring both the crushing and
grinding function and accommodating the entry and crushing of larger materials.