Multistage granulation equipment for ceramic pug

Abstract

The invention relates to the technical field of ceramic powder processing equipment, in particular to multistage granulation equipment for ceramic pug. The multistage granulation equipment for the ceramic pug comprises a granulation bin, wherein at least two friction granulation layers are arranged in the granulation bin; at least one friction granulation assembly is arranged on each friction granulation layer; and the pore diameter of each sieve pore of the friction granulation assembly at the lower layer is smaller than the pore diameter of each sieve pore of the friction granulation assembly at the upper layer corresponding to the friction granulation assembly at the lower layer. According to the multistage granulation equipment for the ceramic pug provided by the invention, the multiple friction granulation layers are arranged, and the sizes of powder particles prepared by the friction granulation assemblies of different friction granulation layers are reduced layer by layer, so that the problem of low granulation efficiency of existing single-layer granulation equipment is solved; in addition, dry air or hot air flow is introduced into the granulation bin through the air inlet, so that the mobility and / or the temperature of the air flow in the granulation bin are / is improved, and the powder particles are dried; and due to the fact that the specific surface area of the granulated particles is large, the drying speed is high, the drying cost is low, the surface viscosity of the dried powder particles is reduced, and the dried powder particles can fall off from the sieve pores easily.

Description

technical field [0001] The invention relates to the technical field of ceramic powder processing equipment, in particular to multistage granulation equipment for ceramic mud. Background technique [0002] In order to solve the problems of high energy consumption, serious pollution, and high production cost caused by the use of a spray drying tower to dry ceramic slurry, a Chinese invention patent application with application number 2019102196264 discloses a ceramic wet low-temperature powder-making process. Through dehydration treatment, low temperature drying treatment, crushing and granulation treatment of the mud, the obtained dry powder particles have the characteristics of low water content. This process does not need to consume too much combustion energy while maintaining the efficiency of ceramic powder making , greatly reduce the energy consumption of the ceramic production process, improve production efficiency, effectively reduce pollutants and greatly reduce the p...

AI Technical Summary

Problems solved by technology

[0007] 1. When the existing equipment is granulating, the size of the mud on the sieve ranges from tiny powder particles to about 5cm of mud. The size of these mud is different from the sieve hole diameter of the sieve. It is huge, so it needs to be lifted many times before it can be broken into a size suitable for friction granulation by the breaking hammer, which reduces the efficiency of the entire friction granulation;

[0008] 2. The dryness of the ceramic mud to be treated is relatively high, and it is only suitable for ceramic mud with a water content of not more than 10%.

When the water content of the ceramic mud is high, since the sieve holes on the arc-shaped screen are only 0.5-1 mm in diameter, the ceramic mud with high water content is easy to paste the through holes, which reduces the friction of the equipment for granulation. The speed cannot even continue friction granulation;

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