What is critical parameter rapid mixer granulator?
Nature of Granulating solvent / suspension Quantity of liquid binder more the concentration of binder better the granules but batch could become unstable after certain limit . Viscosity of binder is also an critical operating parameter higher the viscosity of binder larger and denser the granules .
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 end point in RMG?
Endpoint can be defined as a target particle size mean or distribution.
How does a granulator work?
A plastic granulator is a machine used for breaking down plastic products for recycling. Once the plastic is fed into the granulator, a series of cutting knives within the rotor is powered by an electric motor to break the plastic into smaller pieces.
What is the function of rapid mixer granulator?
Rapid Mixer Granulator is used to mix various ingredients and make the granules before condensing. It is used during many processes of manufacturing granulating of the powder in the Pharmaceutical industry, chemical industry, cosmetic manufacturing industry, generally dry and wet mixing industry.
How do I calculate the capacity of my rapid mixer granulator?
For this, first, calculate the bulk density of powder to be mixed, then it multiplies by the capacity in liters (provided by the vendor), for, eg. Working capacity in a liter is 600 liter, and its working volume is 80% means 480 liters and bulk density is 0.5; then capacity in kgs is 480X0. 5= 240 kg.
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 amperage in RMG?
Ampere load on Impeller and Chopper i.e the current which is used by Impeller and chopper motor to rotate when granules are formed . Ampere load is high in beginning when granulation starts as motors need more power and decreases as end point is reached .
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 are granules formed in a rapid Mixer granulator?
In rapid mixer granulator, the formation of granules occurs by rising, whirling and tumbling motion of the material. Dry mixing is done by adding all ingredients into the RMG by rotation of impeller and chopper at high speed. During the addition of binder solutions to the powder impeller and chopper are operated at low speed.
What is the working principle of a rapid mixer?
RMG (Rapid mixer granulator) Principle and working 1 Rapid mixer granulator Mixing ,Densification and Agglomeration 2 Shear mixing. (Breaking inter-molecular forces) and Compaction forces exerted by Impeller on the powder mass . 3 Mixing Chambers. 4 Filter assembly.
How is densification and agglomeration achieved in rapid mixer?
In Rapid mixer granulator Mixing , Densification and Agglomeration is achieved using Shear mixing (Breaking inter-molecular forces) and Compaction forces exerted by Impeller on the powder mass . RMG consists of Mixing chamber , Impeller , Chopper ,Discharge port , Filter assembly , Purging air and Solution inlet port .
Which is responsible for wet granulation in a granulator?
A mechanical impeller moves the powder while a liquid binder is applied onto a moving powder bed. Addition of the liquid binder starts the formation of granules. The granulator also has a chopper. Impeller and chopper are mainly responsible for wet granulation in the rapid mixer granulator.