A New Polyacrylamide Drying Process

Abstract

The invention belongs to the technical field of microorganisms, and relates to a novel drying process for polyacrylamide. The drying process specifically comprises the three following steps of colloidgranulation, stirring bed drying and fluidized bed drying. According to the novel drying process for polyacrylamide, a stirring bed and a vibrating fluidized bed are combined for use, and the solid content of the stirring bed is controlled; when colloid is dried, the stirring bed is used for drying in the earlier stage so that the colloid can be effectively prevented from clamping the bed and being adhered to the bottom of the bed; the vibrating fluidized bed is used for drying in the middle and later stages, shearing force of the vibrating fluidized bed is extremely small, so that little fine powder is generated, the drying travel of vibrating fluidized bed materials is relatively long, the temperature partition is more consistent with the drying principle, energy consumption is effectively reduced, the production efficiency is greatly improved, and the product quality is improved.

Description

technical field [0001] The invention belongs to the technical field of microorganisms and relates to a novel polyacrylamide drying process. Background technique [0002] Polyacrylamide is widely used in water treatment, papermaking, petroleum, coal, mining and metallurgy, geology, textile, construction and other industrial sectors. It has various characteristics such as flocculation, drag reduction, bonding, stable colloid, thickening, and film formation . At present, the polyacrylamide colloid is transported to the drying equipment for drying after granulation. Generally, there are three types of drying equipment, vibrating bed, static bed and stirring bed, but the static bed and vibrating bed are easy to die, and the material cannot be boiled. The colloid sticks to the bottom of the bed, the drying effect is poor, and often needs to be cleaned, which takes up a lot of labor and the production efficiency is very low; although the colloid in the stirred bed does not have th...

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Problems solved by technology

[0003] The purpose of the present invention is to overcome the shortcomings of the prior art, and propose to design a novel polyacrylamide drying process to solve the problem of dead beds or a large amount of fine powder in the drying process, improve the quality of the product, and increase the production rate. Efficiency, effectively reducing energy consumption

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