Multilayer drying machine with different filter screens

Abstract

The invention relates to a multilayer drying machine with different filter screens. A device main body crossbeam is inside provided with an upper layer conveyor belt, a middle layer conveyor belt and a lower layer conveyor belt, and the three layers of conveyor belts are connected through a conveyor belt drive unit; humidity elimination gas ports and compensation wind inlets are arranged among the three layers of conveyor belts; a hopper is arranged on a right fixed support end, and a humidity elimination blower fan and a circulating blower fan are arranged on the device main body crossbeam; a bent pipeline is arranged between a heat exchanger device and a heat exchanger outlet, and the bent pipeline is arranged among the three layers of conveyor belts; a humidity elimination trunk pipe is connected with the humidity elimination blower fan; and the upper layer conveyor belt, the middle layer conveyor belt and the lower layer conveyor belt are provided with filter screens with through holes in different sizes. The multilayer drying machine with different filter screens is advantaged in that according to characteristics of pie-shaped, bar-shaped and spherical catalyst process materials by means of a precipitation method, a band extrusion method and an immersion method, a multilayer high-strength stainless steel netted crawler belt is arranged, the gap of the crawler belt is reasonably controlled, and the aim of general and continuous drying and layered filtering of materials is achieved.

Description

technical field [0001] The invention relates to the field of chemical equipment, in particular to a multi-layer dryer with different filter screens. Background technique [0002] The drying equipment in the catalyst preparation process is generally a drying oven, which can only be operated intermittently. There have been many problems such as uneven drying of materials, high labor intensity, and high energy consumption. Moreover, the phenomenon of material sticking is very serious, and many materials are very unsuitable. The traditional drying oven was used; later, the belt dryer was applied in the catalyst field. Although the transformation quality and automation level were greatly improved, the single-layer structure made the equipment occupy a large area and consume relatively high energy consumption. Contents of the invention [0003] The purpose of the present invention is in order to overcome above-mentioned problem, a kind of multilayer drier with different filter s...

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Problems solved by technology

[0002] The drying equipment in the catalyst preparation process is generally a drying oven, which can only be operated intermittently. There have been many problems such as uneven drying of materials, high labor intensity, and high energy consumption. Moreover, the phenomenon of material sticking is very serious, and many materials are very unsuitable. The traditional drying oven was adopted; the belt dryer was later applied in the field of catalysts. Although the transformation quality and automation level were greatly improved, the single-layer structure made the equipment occupy a large area and consume relatively high energy consumption.

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