Horizontal Vacuum Paddle Dryer

This equipment can be used in drying process of various Pharmaceuticals, Intermediate Compounds, Fine Chemicals, Chemicals, Agro Chemicals, Pesticides, Insecticides, Dyes and Food Products.

Product Details

Horizontal Vacuum Paddle Dryer introduction

1. Used for drying or reacting of pastes, filter cakes, powders, and granules under vacuum condition;

2. Heating area: 3-200 M2

3. Volume of drying chamber: 500-15000 L

4. Working type: Batch type

5. Heat source: steam, hot water or hot oil


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Working Principle

ZPG series rotary vacuum paddle dryer is an indirect heating drying processor which gives drying, mixing and breaking effects simultaneously. Wet cake or slurry is fed through feed port. The main shaft with discs rotates in different directions to regularly move and mix the material,  while vacuum is applied in the dryer and heating media is circulated in the jacket of drying chamber and hollow discs. Evaporation of moisture takes place under vacuum condition and vapors passes through the dust catcher into the condenser, where it is condensed and collected in the receiver. Dried material is discharged through discharge valve.


ZPG series vacuum paddle dryer has been widely used for drying wet cake product after filtration especially sticky heat sensitive paste material. This equipment can be used in drying process of various Pharmaceuticals, Intermediate Compounds, Fine Chemicals, Chemicals, Agro Chemicals, Pesticides, Insecticides, Dyes and Food Products which have the following properties:


1) Powder, slurry, paste and filter cake wet materials;

2) Heat sensitive wet materials

3) Oxidizing, toxic, explosive wet materials

4) Moisture is organic solution and need to be recovered


Special properties for the customer’s benefit:

Economic, robust multipurpose machine for heavy industrial applications

The agitator is supported on both ends providing excellent mixing characteristics, with externally interchangeable stuffing boxes or mechanical seals

Large heating area resulting in an outstanding heat transfer rate by heating the vessel walls, the vessel ends as well as the agitator shaft and arms


Detailed Images

Tubular drying chamber

1) Heating jacket working pressure can reach 0.9 Mpa

2) Vacuum degree -0.096 Mpa

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Hollow disc

1) Considerably increase heating area

2) Only 30% welding area of wedge-shape paddle

3) Self-cleaning disc surface can considerably enhance heat transfer

4) Small paddles welded on discs with different angle can perfectly mix and move raw materials

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Integral beating seat and mechanical sealing

Bearing seat is mounted on end plate as an integral part of drying chamber. This design can improve the concentricity of shafts. Water cooling jacket can considerably increase the life-span of bearing. Double-end mechanical seal is used to make sure high vacuum degree.

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Moisture recovery system

The vacuum system consists of two-stage tubular condenser, separator and oilless roots vacuum pump to guarantee high vacuum degree (10 bars) and recovering rate (98%).


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Cases 

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