The utility model provides a
fluidized bed, which relates to the technical field of
industrial water treatment and comprises a
settling section, a fluidizing section and a water and
medicine feeding section which are sequentially arranged from top to bottom, a
crystal inducing carrier feeding port is arranged at the upper end of the
settling section and is used for feeding a
crystal inducing carrier into the
fluidized bed, so that to-be-recycled elements are attached to the surface of the
crystal inducing carrier; a water producing port and a circulating water outlet are formed in the side wall of the
settling section, the water and
medicine inlet section is provided with a water inlet, a
medicine inlet and a circulating water inlet, the circulating water outlet is connected with the circulating water inlet through a circulating pipeline, and a
circulating pump is arranged on the circulating pipeline; the chemical inlet is used for adding chemicals to the
fluidized bed so as to adjust the
hardness of water to be treated; the problems that in the prior art, when
industrial water is treated through a chemical method, the treatment efficiency is low, and the
water content of the suspension is high in the mode that the suspension is formed by clarifying elements to be recycled are solved.