Vertical dryer is composed of a fixed barrel, air inlet and outlet device, feeding device, high yield and high efficiency heat exchange device, and warm holding device. Vertical dryer is made of steel structure; inner lining adopts heat preservation materials to keep warm; multilayer high temperature castings are adopted in the roaster; there are vibration system,interception system, temperature control system and intelligent control system installed on some relevant parts of the machine; vapor and smoke are collected with the application of a draught fan and a cyclone dust collector.
Working principle:
When temperature is showed from 400°C to 500°C by temperature controller on the bottom, materials, whose granularity is not more than 25mm, will be raised to preheating zone by lifter under the instruction of intelligent material level controller; When temperature is showed from 150°C to 250°C by temperature controller on the top, materials will be sent into cross vibration chute by electric shutoff device to take the second preheating. During the vibration-preheating course, materials are dried and loose and evenly distributed into several overlapped distribution cones to take the third drying process till the materials are completely dried.

Features:
Saving investment,covers an area of 25 square meters no need workshop.
2.Internal adopt heat-resisting and wearing-resisting alloy casting,long service life,convenient maintenance.
3.Thoroughly solved the big air leakage,not easy seal problem between dryer and furnace.
4.Countercurrent operation,high thermal efficiency,fast drying speed.Small exist concentration,just for 10g/m3.
5.Rely on gravity fall,no need power.
6.It can use multiple grate basin,grate cone,adopts different angles and different spacing design,and its strong adaptability,suitable for drying slag,clay and sand,coal,iron powder,ore etc.
7.The microcomputer automatic detection control system can optimize adjust the dryer technological parameter on-line.

Technical Parameter: