What is RMG principle?

What is RMG principle?

Working principle of RMG: Rapid mixture granulator works on agitation, tumbling. The impeller is responsible for uniformly mixing wet granules, and the chopper helps in a break or reduced particle size. At the starting process or during binder addition, the impeller and chopper generally operate at low speed.

What is kneading time in RMG?

Dry mixing takes about 3-5 minutes to mix the ingredients, wet mixing takes 5-10 minutes to make the wet mass of material while the granulation process takes 5-10 minutes to make 0.5 mm to 1.5 mm sized granules. Mixing time consumed in processing is depends upon the ingredients quantity and their particle size.

What is Torque in RMG?

Torque is a measure of the amount of energy needed to rotate the impeller. Therefore, torque depends on the resistance of the mass against rotation of the impeller (2–4). In the wet mixing process, changes in torque occur as the result of a change in the cohesive force of the granules in the wet powder bed.

How many types of RMG are there?

Mixing Chambers in Rapid mixer granulator is of 3 types Conical shaped , Domed shape , and Circular shaped although the basic aim behind all the shapes is to eliminate the dead points and wall adhesion i.e.the powder may not adhere to wall from where it cannot detach leading to inefficient granulation as well as mixing …

What is purging air in RMG?

What is Purging Air in RMG? Generally, purging air is used to flush the industrial process equipment with clean air. Purging Air helps to keep the surfaces of RMG (Granulation Machine) clean and help in maintaining its effective performance.

What is tip speed in RMG?

Blade Speed (tip speed), measures how far a point on the outer most edge of the disperser blade travels in a given amount of time. You may remember from early math classes that the circumference (perimeter) of a circle is equal to: Circumference = Π × D.

What is role of purging air in RMG?

What are the critical parameters of RMG?

Critical process parameter for roller compaction process is Roller force, roller gap, roller speed and mill screen size. The parameters under evaluation are Roller force, roller gap and roller speed.

What is the purpose of wet granulation?

In wet granulation processes, the powder particles are aggregated through the use of a liquid phase called binder. The main purposes of size-enlargement process of a powder or mixture of powders are to improve technological properties and/or to realize suitable forms of commercial products.

What is pharmaceutical wet granulation?

Wet granulation involves the massing of a mix of dry primary powder particles using a granulating fluid. The fluid contains a solvent which can be removed by drying, and should be non-toxic.

How do you calculate blend time?

For a typical pitched-blade turbine the dimensionless blend time for 99% uniformity is: 6.34 = Blend time x Rotational Speed x (Impeller Diameter/Tank Diameter)^2.3 x (Liquid Level/Tank Diameter)^-0.5 ;as shown in the attached dimensionless equation.

Does impeller affect speed?

The speed and diameter of the impeller determines the head or pressure that the pump can generate. The rotational speed and height of the impeller blades determines the flow that the pump can accommodate [4, 5].