The features of paddle dryer are 1.Compact construct 2.large heat-exchange surface
1. Introduction of Equipment
Paddle dryer (cooler) is a sort of compact, high thermal efficient, indirect-heated (cooled) stirring equipment, it’s structure mainly including top cover, rotating shaft, trough, dryer frame and driving mechanism. Paddle shaft is the key part of dryer, which is comprised of holly blade and holly shaft with special flow channel. The trough is inclined at a small angle to horizontal. Wet cake is fed into the inlet side, and moves to the outlet as a result of gravity and paddle shaft. At the outlet side, the product moves to next process via the overflow dam. The heat is transferred to (or from) the material via hollow blade, hollow shaft and jacket.
Paddle dryer (cooler) is mainly used in processes of drying, reacting, cooling, crystallizing, evaporating, sterilizing, low temperature roasting and so on for heat-stable organic and inorganic products and heat sensitive products in vacuum condition. It can also be used for combined purpose.
By heating medium, paddle dryer can be divided into steam type (saturated steam or over-heat steam), liquid type (water or oil, hot or cool), operation method can be continuous or batch type, with heating medium(steam, oil or water) keeps away from the product. By the number of paddle shaft, paddle dryer can be divided into single shafts, double shafts and quad shafts. By operating pressure, paddle dryer can be divided into vacuum type, atmospheric type and pressurized type.
Two paddle shafts turn in opposite directions and can be meshed or not. Specially designed paddles ensure excellent contact between blade surfaces and material. Due to the wedged shape of blade, material can be pressed and released alternatively in axial direction. Paddle blades is self-cleaning type which provides relative shear forces between blade and material and keeps blade clean for better heat transfer.
2. Features of the equipment
The features of paddle dryer are
Compact construct, large heat-exchange surface, little floor space
Uniform agitating, high thermal efficiency, well dry effect
Wedge-shaped paddle has a self-cleaning capacity
Low energy consumption and operation cost
Low dust production and material waste
Indirect-heating (cooling), no products contamination
Simple equipment control, flexile and reliable operation
Gas-tight for toxic and odorous products
Product never comes into contact with medium
Multifunction for combined process
Applicability
Paddle dryer (cooler) is widely used for the drying or cooling of slurry-like, powder, particles, filter cake and other materials in petrochemical, inorganic chemical, metallurgy, architecture, environment, dyestuff, foodstuff, pharmaceutical, slurry, etc.
Our company can provide various technical services for the users
Test research: for carrying through the type-selection test for drying equipment and the development for drying process, with several sets of industrial test devices.
Technology and equipment development: for proving optimum equipment combination and relevant technological design according to the drying characteristics and process demand of different materials; for carrying through the development of production equipment and related devices according to production process and product demand from the users.
Engineering and equipment design: for providing drying unit engineering design and equipment complex supply (including electricity and meter control system),and also separately providing electric, meter control system design and device complex.
Equipment manufacturing: for manufacturing the equipment according to the drawings from users.
TIANHUA Large Paddle Dryer (Cooler)
