Multistage treatment dryer

Abstract

The invention discloses a multistage treatment dryer. The multistage treatment dryer comprises an auxiliary frame; one side of the auxiliary frame is connected with a feeding groove; a first fan and a second fan are respectively mounted on one side of the top of the feeding groove; exhaust ports of the first fan and the second fan are respectively connected with pipe ports on the surface of a hot drying box through air pipes; the bottom of the feeding groove is connected with a first stirring box; the bottom of the first stirring box is connected with a second stirring box through the hot drying box; the bottom of the second stirring box is connected with a third stirring box through the hot drying box; the bottom of the third stirring box is connected with a fourth stirring box through the hot drying box; and spiral push rods are respectively arranged in inner cavities of the first stirring box, the second stirring box, the third stirring box and the fourth stirring box. The multistage treatment dryer is provided with the first fan and the second fan for matching with the hot drying box to largely prolong the working time, and blows hot air in the hot drying box to achieve the effects of improving the working efficiency and promoting the drying quality.

Description

technical field [0001] The invention relates to the technical field of drying, in particular to a multi-stage drying machine. Background technique [0002] The dryer has several modes such as belt drying, drum drying, box drying, tower drying, etc.; the heat source includes coal, electricity, gas, etc.; the drying process of materials has hot air flow type and radiation type, etc. , hot air drum drying is that the hot air flow moves forward from the tail, fully contacts with the material, and makes full use of the heat transfer through heat conduction, convection, and radiation; the heat energy is directly transferred to the material, so that the moisture of the material is continuously evaporated in the cylinder, and the material is fed into the cylinder. The air-introduction device at the outlet draws out a large amount of water and wet air to prevent secondary pollution caused by dust discharge; through internal spiral stirring, sweeping and lifting, the material movement...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a dryer with multi-stage treatment, which has the advantages of long-term work, no need to stop, and multi-stage channel processing and drying, which solves the problem of cooling during shutdown and condensation of water vapor in the channel, generating moisture, and then affecting drying. problem of effect

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