Difference between Dilute Phase and Dense Phase Conveying

Do you know what the most common dilute phase and dense phase conveying are in pneumatic conveying?😎

If you understand it, then you can know what characteristics of the delivery mode they are suitable for

Today, the editor is here to sort out the dilute phase conveying and dense phase conveying that are common in pneumatic conveying.

Dilute phase pneumatic conveying uses high gas velocity at low pressure.

The speed of the conveying gas is sufficient to keep the conveyed material suspended.

The material is conveyed in a continuous manner and will not accumulate at the bottom of the conveying pipeline in any position.

For dilute phase conveying, a relatively high conveying air velocity must be maintained.

The typical speed of the dilute phase system is around 15-30 m/sec. However, this is not a constant speed;

There is a starting speed at the beginning of the conveying and a terminal speed at the end,

And the acceleration of the entire pipeline length.

The characteristics of dilute phase conveying are as follows: high speed, low pressure and low material-gas mixing ratio.

During the dilute phase conveying process, the conveyed particles will be broken and degraded.

Because of the high speed, dust and material are broken.

In addition, the use of dilute phase transportation for abrasive materials will cause wear in the bends of the pipeline.

This high speed can also be shown on the electricity bill. 📈

“Due to the higher power requirements for high-speed transmission, the energy efficiency of the dilute phase is lower than that of the dense phase”

 

The typical speed of dense phase conveying is about 8~10 m/sec or less. Same as dilute phase pneumatic conveying,

At the beginning and end of the pipeline, there is a starting speed and a terminal speed, as well as the entire acceleration.

Lower speed of conveying can reduce material and system wear.

“In dense phase conveying, the material is almost undamaged. This is one of the best advantages of dense phase conveying.”

For this reason, materials that are fragile or easy to wear are very suitable for this system.

Due to the lower speed, abrasive materials are often more advantageous in dense phase transportation.

The characteristics of dense phase conveying are as follows: low speed, high pressure and high material-gas mixing ratio

Generally speaking, dense phase conveying systems are usually more energy efficient than dilute phase conveying systems.

However, dense phase transportation is often limited by the distance.

Therefore, there is no absolute difference between the two conveying methods, and the vegetables and carrots have their own love.

It depends on what your system design and the characteristics of conveying materials require. ✨

 

But whether it’s a dilute phase or dense phase pneumatic conveying system,

Taiwan Control has a wealth of experience in the planning and professional Know-How of pneumatic conveying systems

In major petrochemical plants, you can see that TCV has carefully designed dilute/dense phase pneumatic conveying systems for customers.

Such as Formosa Plastics, Formosa Poly, Formosa Chemicals, Far East New…

And the station control building has the only vertical distance of 39 meters in Taiwan.

Pneumatic conveying system test tower with a horizontal distance of 135 meters

There is also a related high-concentration (dense phase) pneumatic conveying test plant, and all conveying pipelines are designed with 1:1 original ratio

Can test and verify to ensure that the console is designed for the customer

The pneumatic conveying system solution meets the real needs of customers.

If you have any problems with the pneumatic conveying system, we will the answer for your solution.