Victor Farm Machinery
Victor Fertilizer Granulator
+86-18768871537 fertilizer@victormachinery.net
  • Home
  • Products
  • Blog
  • About Us
  • Contact Us
Victor Fertilizer Granulator
fertilizer granulation machine
PreviousNext


difference between dry granulation and wet granulation-victor granulator

Wet Granulation: The process of adding a liquid solution to powders involves the massing of a mix of dry primary powder particles using a granulating fluid. The fluidĀ contains a solvent that must be volatile, so that it can be removed by drying, and be non-toxic. Typical liquids include water, ethanol and isopropanol, either alone or in combination. The liquid solution can be either aqueous-based (safer) or solvent-based. Water mixed into the powders can form bonds between powder particles that are strong enough to lock them together. However, once the water dries, the powders may fall apart. Therefore, water may not be strong enough to create and hold a bond. In such instances, a liquid solution that includes a binder is required. Once the solvent/water has been dried and the powders have formed a more densely held mass, then the granulation is milled.

The process can be very simple or very complex depending on the characteristics of the powders and the available equipment. In the traditional wet granulation method, the wet mass is forced through a sieve to produce wet granules that are subsequently dried. A subsequent screening stage breaks agglomerates of granules. Organic solvents are used when water-sensitive drugs are processed, as an alternative to dry granulation, or when a rapid drying time is required. Because direct compressing is not the best technology for many active substances, wet granulation is still a preferred method. Even if the active substance is sensitive to hydrolysis, modern equipment (a fluidized bed, for example) eliminates all problems in wet granulation.

rotary drum granulator (2)

Dry Granulation: This process is used to form granules without using a liquid solution, because the product to be granulated may be sensitive to moisture and heat or does not compress well. Forming granules without moisture involves compacting and size reduction of the mix to produce a granular, free flowing blend of uniform size. Thus, the primary powder particles are aggregated under high pressure using swaying or high shear mixer-granulators. Dry granulation can be done in two ways: either a large tablet (slug) is produced in a heavy duty tableting press or the powder is squeezed between two rollers to produce a sheet of materials (roller compactor/chilsonator). When a tablet press is used for dry granulation, the powders may not possess enough natural flow to feed the product uniformly into the die cavity, resulting in varying degrees of densification. The double roller granulator (granulator-compactor) uses an auger-feed system that will consistently deliver powder uniformly between two pressure rollers. The powders are compacted into a ribbon or small pellets between these rollers and milled through a low-shear mill. When the product is compacted properly, it can then be passed through a mill and final blend before tablet compression.

fertilizer making machine

Finally, wet granulation involves the production of a granule by the addition of liquid binders to the powder mixture. Both continuous direct compression (CDC) and continuous mixing for the dry granulation processes involve the individual loading and accurate feeding of the API and a variety of excipients to a continuous blender.




Get In Touch Now!

If you are in the need of any equipment,or if you have any question about our equipment.Please feel free to contact us! Our professional team will reply to you within one business day.

    Your privacy is important to us,we are committed to marking sure your privacy is confidential.

    Products
    • chain mill crusher
    • disc granulator
    • rotary drum granulator
    • Multifunctional Roller Granulator
    • new design granulator
    • rotary screening machine
    • rotary drum dryer
    • drum cooling machine
    • drum coating machine
    • manure dewater machine
    • compound fertilizer production line
    • organic fertilizer production line
    • fertilizer mixer machine
    • fertilizer crusher machine
    • compost turner machine
    • belt conveyor
    • automatic packing machine
    • fertilizer ball shaping machine
    Hot Blogs
    • disc pelletizer for sale
    • dry and wet granulation difference
    • organic fertilizer equipment
    • what affect fertilizer quality
    • new design fertilizer granulator
    • how to process horse manure
    • composting leaves for organic fertilizer
    • organic fertilizer round ball granulator
    Contact Us
    ADD:Wenhua Road And Sanquan Road Zhengzhou China
    Phone:0086-371-56747890
    Mobile:0086-187-6887-1537
    Whatsapp:008618768871537
    Wechat:008618768871537
    Email:fertilizer@victormachinery.net
    • disc pelletizer for sale
    • dry and wet granulation difference
    • organic fertilizer equipment
    • what affect fertilizer quality
    Flollow Us
    • Facebook
    • Instagram
    • Twitter
    • YouTube
    • Linkedin
    Contact Us
    ADD:Wenhua Road And Sanquan Road Zhengzhou China
    Phone:0086-371-56747890
    Mobile:0086-187-6887-1537
    Whatsapp:008618768871537
    Wechat:008618768871537
    Email:fertilizer@victormachinery.net

    Victor Fertilizer Granulator © 2014-2022 All Rights Reserved.
    Top