Flotation machine and ore pulp tank thereof

The ore pulp tank comprises a tank body and a sealing block, an inclined flow guide plate used for collecting foam overflowing out of the tank body is arranged on the head side of the tank body, and strip-shaped first longitudinal ribs close to the tail side are arranged on the inner walls of the two sides of the tank body in the width direction in a protruding mode respectively. The first longitudinal ribs on the two sides in the width direction are arranged in pairs in a manner of facing each other; the sealing block is used for being arranged on a bottom plate of the tank body, and the two ends of the sealing block abut against the corresponding first longitudinal ribs respectively, so that a containing space used for containing materials is defined by the sealing block and the head side of the tank body. The ore pulp tank is designed to comprise the tank body and the sealing block, the space, deviating from the scraper blade side, of the tank body can be separated through the sealing block, and an indepen