The invention discloses a spirulina
cell-wall breaking shearing device comprising a shearing cavity, wherein an upper cover round plate is fixed at the top of the shearing cavity, a rotor shearing
impeller is arranged on a base plate of the shearing cavity by virtue of a driving shaft in a sealed manner, and the driving shaft penetrates through the base plate of the shearing cavity and is connected with a motor and is connected with a hole formed in the base plate of the shearing cavity in a sealed manner; a plurality of
stator blades are uniformly arranged in the
peripheral direction of the base plate of the shearing cavity at intervals, the head part of each
stator blade is provided with symmetrical blade surfaces, the top parts of the two blade surfaces form a
cutting edge, a
stator tooth blade is arranged between the blade surfaces of every two adjacent stator blades respectively, and gaps are formed among the
cutting edges of the stator blades, the
cutting edges of the stator tooth blades and the rotor shearing
impeller; a material blocking circular ring is clamped on the inner end surface of the upper cover round plate, the bottom of the material blocking circular ring presses against the stator blades and the stator tooth blades, and a material guide circular ring is also fixed on the inner end surface of the upper cover round plate by virtue of a fastening piece and is positioned at the upper part of the rotor shearing
impeller; and a feeding cavity is formed in the middle part of the upper cover round plate, and a
discharge opening is formed at the bottom of the side wall of the shearing cavity. The spirulina
cell-wall breaking shearing device has a good shearing and breaking effect.