Experimental spray dryer for environment-friendly chemical production

Abstract

The invention relates to the technical field of spray dryers, in particular to an experimental spray dryer for environment-friendly chemical production. The experimental spray dryer comprises a dryerbody, wherein a feeding hole is formed in the upper end of the dryer body; a discharge hole is formed in the lower end surface of the dryer body; an air outlet is formed in the right lower end of thedryer body; and an inner cavity of the dryer body is arranged to be a drying inner cavity. The experimental spray dryer has the beneficial effects that through cooperation of a gear and a gear ring, rotary jetting of hot air flow is achieved, so that hot air makes full impact contact with atomized liquid, the drying efficiency is greatly improved, and meanwhile, the flow of the hot air is guaranteed through impact between a spring and the pressure intensity of air inlet flow; by arranging transverse through holes and a buffering inner cavity, buffering of the airflow velocity is achieved, theimpact direction is vertical, the airflow is sprayed out of the spray head in an overflow mode, impact on the atomized liquid is reduced, the contact time is prolonged, and the heating and drying efficiency is further improved in cooperation with an arc-shaped heat conduction plate.

Description

technical field [0001] The invention relates to the technical field of spray dryers, in particular to an experimental spray dryer for environmental protection chemical production. Background technique [0002] Spray dryer is a device that can complete drying and granulation at the same time. According to the process requirements, the pressure, flow rate, and size of the spray hole of the feed liquid pump can be adjusted to obtain the required spherical particles in a certain size ratio. The drying speed is fast, and the surface area of ​​the feed liquid is greatly increased after atomization. It can evaporate 95%-98% of water, and the drying time is only a few seconds, especially suitable for drying heat-sensitive materials. [0003] In chemical production experiments, the amount of drying required is small and the drying efficiency is high. However, when the traditional spray dryer is drying, the drying is not complete due to the uneven contact between the atomized liquid ...

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Problems solved by technology

[0003] In chemical production experiments, the amount of drying required is small and the drying efficiency is high. However, when the traditional spray dryer is drying, the drying is not complete due to the uneven contact between the atomized liquid and the hot gas. To increase the contact drying time, it is necessary to reduce the flow rate of hot air, and to fully dry the hot air with a sufficient injection area, the contradiction between increasing the amount of hot air and reducing the flow rate of air restricts the quality and efficiency of drying

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