A high-efficiency wet granulator

Abstract

The invention discloses a high-efficiency wet-process granulator, comprising a frame, a jacket barrel fixed on the frame and an agitating gear shaft arranged in and coaxial with the jacket barrel and capable of rotating. The front and rear ends of the jacket barrel are respectively provided with an inlet tube and an outlet pipe allowing a material to enter and exit; one side, close to the inlet tube, of the jacket barrel is provided with a plurality of liquid spray devices I spraying liquid into the jacket barrel; and the agitating gear shaft is provided with a plurality of liquid spray devices II. The high-efficiency wet-process granulator is provided with binary liquid spray devices realizing inward and outward opposite spraying; since the jacket barrel and the agitating gear shaft are both provided with the devices used for spraying granulating liquid and the agitating gear shaft equipped with the liquid spray devices II can rotate in the jacket barrel to realize dynamic opposite spraying of the material, the granulator can shorten mixing time in material granulation, enables the material to be rapidly wetted and quickly and uniformly mixed, effectively reduces granulation and mixing space size, maximally increasing an effective granulation area and allows granulation efficiency to be more highly-efficient.

Description

technical field [0001] The invention relates to a powder wet granulation machine, in particular to a wet granulator for carbon black production. Background technique [0002] At present, the known wet granulator includes a frame, a cylinder body, several spray guns, bearings, a stirring tooth shaft and several stirring tooth rods arranged in a spiral arrangement on the cylinder body. spray gun. In the carbon black production process, powdered carbon black enters from the feed port of the wet granulator cylinder, and is mixed with the binder (granulation liquid) with a certain pressure injected from the spray gun through the high-speed rotation of the stirring teeth. Together, the carbon black powder can quickly discharge the gas adsorbed on the surface, make the surface have a certain cohesive force, and form fine carbon black particle nuclei. The fine carbon black nuclei are rolled, squeezed and sheared under the action of the high-speed rotation of the stirring teeth of ...

AI Technical Summary

Problems solved by technology

At present, the known wet granulation machine mainly adopts the hole on the jacket cylinder body, inserts the spray gun, and sprays the granulation liquid to complete the granulation. It belongs to the unitary liquid spray device. On the one hand, this structure causes the wet If the humidity is uneven and the mixing process is too long, it will inevitably lead to an excessively large mixing space structure. Under the same structural size, too much effective granulation space will be occupied, resulting in structural waste and uneconomical; If the time is too long, the efficiency of the granulator is not high

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