A vertical fluidized bed, one-step granulator and a material kettle air inlet mechanism

Abstract

The utility model relates to the technical field of granulating equipment, especially to a vertical fluidized bed, one-step granulator and material pot air inlet mechanism. The material pot air inlet mechanism is provided with a first air duct in the air inlet bin, the area between the first air duct in the air inlet bin and the inner wall of the air inlet bin is a second air duct, the first air duct and the second air duct are both communicated with the air inlet pipe, and the air pressure of the first air duct acting on the bottom of the material pot is greater than the air pressure of the second air duct acting on the bottom of the material pot. The mechanism realizes the periodic adjustment of the subarea of the air inlet at the bottom of the material pot through the rotation of the first air duct, so that the material can continuously change periodically between strong boiling and micro boiling, energy saving and the adsorption of the material to the filter due to the blowing of the material being too high are reduced. When applied to the one-step granulator, the problem that the content of the material in the finished product is reduced due to the participation of the material adhering to the filter in the granulation, resulting in the quality risk problem is also reduced.

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