Zhengzhou Hengyang Industrial Co., Ltd
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Various Rotary Dryer use in Sugar Drying Process
Gross Hopper: The multitray grass hopper is generally used in Sugar Industry. The grass hoppers are generally divided into two to three parts as per the application like receiving hopper, hot air and cold air arrangements.
The grass hoppers are generally 1.2 to 2.0 meters width and 20 to 30 meters in length depends on capacity and rotated by eccentric drive having a throw of 1.0 to 1.5 inch and 250 – 300 rpm. The horizontal trough is supported on flexible strips at 60o angle to the horizontal.
Hot air (80-90ºC) is blown through the trays of hot air hopper to dry the sugar up to 0.04 % moisture while cold air is blown through the trays of next hopper to cool the sugar.
Vibrative Dryer : The structure of this type of dryer is based on the vibrative conveyor. It consist of a frame of vibrative conveyor is divided in to two chambers of top and bottom by separated plates. The under chamber contains drying air and top chamber contains sugar.
The Rotary Drum Dryer : The drum dryer is a common in production plants. The rotary drum dryer is simple structure, It consist of a cylinder vessel which is set slanting 3O to 5O.
The Fluidized Dryer: It is designed and reformed on the vibrative conveyor for sugar drying. The dryer consist of three chambers. The first one is received the moisture sugar and distributed regularly on the wideness of conveyor. The second chambers which is separated by a screen with perforated holes. sugar travel on the screen, hot air is under screen. The hot air chamber distribute hot air regularly during drying. The last one is cool chamber and its structure is alike the drying chamber. This chamber is received ambient to cool dried sugar.