Low-speed airflow drying equipment

Abstract

The invention discloses low-speed airflow drying equipment. The low-speed airflow drying equipment comprises a hot wind boiler, an induced draft fan, an airflow drying chamber, a gas-material separator and a dust remover, wherein a wind outlet of the hot wind boiler is connected with a wind inlet of the airflow drying chamber by a feeding pipe; a feed port is formed in the feeding pipe; a wind outlet of the airflow drying chamber is connected with the gas-material separator; a waste gas discharge port of the gas-material separator is connected with the dust remover; and a gas outlet of the dust remover is connected with a wind inlet of the hot wind boiler by the induced draft fan. The drying wind speed about 3 m / s is adopted in a drying pipe to realize low-wind-speed airflow drying; the internal structure and the inner wall surface are specially treated, and flow parameters are optimized to reduce the system loss; the equipment has such advantages as low drying wind speed and uniform material heating, effectively improves the water content uniformity of discharged wet materials, and decreases the hardening degree of the wet materials in the machining process by about 1%; the water content range of the dried outlet materials is reduced by 1.5%; and the sample sensing quality is improved.

Description

technical field [0001] The invention relates to a drying device, in particular to a low-speed airflow drying device. Background technique [0002] Airflow drying is a continuous high-efficiency solid fluidized drying method. It sends the wet material in the form of mud, powder or block into the hot air flow, and flows with it, so as to obtain the dry product dispersed into granules. The purpose of drying is to remove moisture or solvents from certain raw materials and semi-finished products. As far as the chemical industry is concerned, the purpose is to facilitate packaging, transportation, storage, processing and use of materials. The airflow dryer has the advantages of simple structure, less investment, short drying time and no change of heat-sensitive materials, so it is widely used in industrial production. The traditional airflow dryer has complex structure and poor drying effect. Moreover, the wet product is blown into the knife pipe, causing sticking and sticking ...

AI Technical Summary

Problems solved by technology

The traditional airflow dryer has complex structure and poor drying effect

Moreover, the wet product is blown into the knife pipe, causing sticking and sticking to the inner wall of the drying pipe, which is not easy to clean, reduces the drying efficiency, and cannot guarantee the quality of the dry material

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