| |
Automation |
|
|
|
| |
|
| |
 |
| |
Choosing the correct automated Pneumatic Conveying System is a challenging process. Automation gives you high efficiency, a dust-free closed system that is dependable and gentle, and optimizes the use of space. Based on the product characteristics, conveying distance, and space available the system best suited for your needs has to be identified.
Pneumatic conveying systems provide an ideal way to link manufacturing stages in the production process. The decades of experience of Azo, intensive research, and continuing refinement of systems, enables even fragile and abrasion-sensitive products to be conveyed without any risk of damage. |
|
| |
The Principle |
| |
 A blower at the end of the system generates the required vacuum level
Very simple product entry
Dust-free environment as
there is no excess pressure
Ideal for conveying from
multiple feeding points to
one delivery point |
|
| |
 A blower at the beginning of the system generates the required pressure
Air locks or pressure vessels used for product entry
Simple product delivery
Ideal for conveying from one feeding point to multiple delivery points |
|
| |
Combination of vacuum and pressure.
Ideal for conveying from multiple feeding points to multiple delivery points |
|
| |
Conveying Systems |
| |
The wide variation in product characteristics of the materials have resulted in the creation of the following types of conveying systems: |
| |
 Classical method of pneumatic conveying
Conveying velocity above saltation point – all particles suspended
Uniform distribution of product in the pipe
Higher product charging for granular
products possible
Abrasion of product and pipe possible |
|
| |
 Dilute phase conveying in top half of pipe
Product accumulation in bottom half of pipe
Residual product in pipe
Reduction of product velocity down to
saltation point.
More gentle than dilute-phase conveying |
|
| |
 1/3 air volume, 3-fold pressure,
same energy requirement
Residual product in pipe
Stepped line sizes often recommended
for long distance applications
Extremely gentle conveying
Minimum abrasion of pipe |
|
| |
Terms of reference and conveyed products
C/V = velocity ratio V = air velocity C = product velocity m/s
Q S = solids mass flow R = solids loading = Q S / Q A Q A = air mass flow |
|
| |
To help you select the right system for your product, look at the table below: |
| |
Criteria for selecting Pneumatic Conveying Systems |
| |
|
| |
|
Conveying Systems
Product Characteristics |
Suction Conveying Systems |
Pressure Conveying Systems |
(Dilute-
Phase) |
(Low-
Velocity) |
(Semi-
Dense
Phase) |
(Dense-
Phase) |
(Dilute-
Phase) |
(Low-
Velocity) |
(Dense-
Phase) |
Superfine Powder
e.g. carbon black
fire-extinguishing powder |
 |
 |
|
|
|
|
|
Particularly Light
e.g. styrofoam, aerosil |
|
|
|
|
|
|
|
Powdery
e.g. flour, PVC |
|
|
|
|
|
|
|
Pourable
e.g. PE grit, sugar |
|
|
|
|
|
|
|
Mixtures
e.g. baking mixturesl |
|
|
|
|
|
|
|
High Fat Content
e.g. cocoa, milk powder |
|
|
|
|
|
|
|
Abrasive
e.g. glass-filled pellets
granules, powdered minerals |
|
|
|
|
|
|
|
Granular
e.g. rice, granulated products |
|
|
|
|
|
|
|
Delicate, Fragile
e.g. tablets, capsules, chips |
|
|
|
|
|
|
|
Size & Shapes Fragile
e.g. noodles, tea moulded parts |
|
|
|
|
|
|
|
| to be recommended good conditional not suitable |
|
| |
|
| |
Hence you can use vacuum or pressure in any of these systems, depending on what your requirement is.
For more details about a particular system, select one of the two methods of conveying given below: |
| |
Vacuum Conveying
Pressure Conveying |
| |
|
| |
Some of the customers currently using Azo Equipment in India are: |
| |
|
| |
|
| |
For information on the complete manufacturing program of AZO, please contact us at azo@vedicsystems.com
|
