The invention discloses a flotation
cell ore pulp liquid level detection device which comprises a guide cylinder, a floating ball, a guide
rope, a guide rod, an exhaust hole and a
pulley mechanism, and the
pulley mechanism is composed of two fixed pulleys; the device further comprises a high-pressure spraying device, a limiting plate, a base, an incremental
encoder, a balancing weight, a balancing cylinder and a high-molecular isolation suite. A limiting plate is arranged above the guide cylinder, exhaust holes are formed in the limiting plate, and a high-pressure spraying device which is directionally arranged is arranged on the inner side of the guide cylinder; the two ends of the guide
rope are connected with the guide rod and the balancing weight respectively, the guide
rope is wound on the two fixed pulleys, the incremental encoders are installed on the fixed pulleys, a base is arranged above the fixed pulleys, and the base is connected with the guide cylinder and the balancing weight cylinder; the method has the characteristics of high precision and high reliability. The ore pulp liquid level detection device for the flotation
cell is also suitable for measuring the liquid level of ore pulp with corrosivity, high
viscosity or
solid particles, direct contact between a medium and a measuring part can be effectively avoided, and the maintenance requirement and the potential measuring error are reduced.