ANIMAL NUTRITION GANNAVARAM.

1. BY,
N.ESHWAR.
STEPS INVOLVED IN OPERATION
OF AUTOMATED FEED MILL

2. Automation of feed mill is done by more sophisticated control
devices, equipment and systems.
Various type of control systems used are
Host computers
Distributed control systems
Industrial computers
Personal computer based systems
Operator interfaces

3. Host computers
◦ Function at or near the top of the feed mill control
system hierarchy.
◦ Usually perform or coordinate supervisory manufacturing
activities.
Distributed control systems
Single failure will not shut down the entire
manufacturing operation.

4. Industrial computers
With proper software makes a superb operator interface
Alarm and diagnostics messages can be presented in the
operators own language and become increasingly
insistent.

5. Personal computer based systems
PC can adapt to a wide variety of applications ranging
from word processing, to structural analysis, to
accounting and data acquisition
Operator interfaces
Multiple equipment that are linked by a host control
system is controlled
Put together advanced control functions, complex
mathematics and optimized control strategies that were
previously often impractical

6. Electric Control System Features
and Benefits for Feed Pellet
Production
1. Accurate and simple operation, high efficiency, reduced cost.
2. More compact device, circuit integration and functionality.
3. Equipment fault warning and fault location functions are helpful to
maintainer; they can debug the faults and recover manufacture
rapidly.
4. The steady and reliable system can provide advantages for the
automation degree and management level of the enterprise.

7. BATCH EQUIPMENT OPERATION
Starting/Stopping - the batching equipment is started and
stopped from the graphical screen via the industrial PLC.
Override - on screen override to test motor or valve
operation.
 High level bin indication
Surge bin sensor
Scales – monitoring of hopper, belt and truck scales.

8. AUTOMATED RECEIVING MODULE
User enters the receiving product name or number and
amount through a pc interface.
The electric distributor is automatically set for the
appropriate destination bin, which references ingredient to
bin location. Once the product is delivered to the
appropriate bin the database is updated with the amount of
the new product.
Alarming - if any problems.
Activity report can be printed on the main PC.

9. Every feed mill has a “white board” to show what materials
are in the bins.
White board will accurately display the materials and the
amount for any bin. This provides instant access and
maximum convenience.
All displays are instantly refreshed and accurate within
seconds of a bin change.

11. AUTOMATIC MILLING MODULE
The electrical current draw of the roller mill is monitored by the
PLC( programmed logical controller)
Feed screw speed and operation is controlled by the PLC for
control of product through the roller mill.
Clean out time is allocated for the stopping of the process.
Alarming - if any problems
Reports of activity and hours of use can be printed.

12. AUTOMATIC MIXING MAJOR, MACRO,
& MICRO INGREDIENTS
A personal computer with a large colour monitor and
printer is used as the interface for this stage of
production.
Scale heads will be interfaced to the PLC
Liquid ingredient meter inputs will be interfaced to the
PLC.
The database can accept multiple formulas (products -
operations).

13. Recipes are created from the PC.
Number of batches needed to mix the recipe is
automatically determined.
The PLC will query the user for hand adds, with the
acceptance by the user when added.
Alarming - on problem arise.

14. Report on recipe completion
Inventory check on available products before recipe
production begins.
Graphical displays on the screen showing recipe in the
scales, recipe in the mixer and upcoming recipe in batch
queue, etc.
User will be able to monitor receiving, grinding,
mixing, pelleting and shipping from different graphical
screens from the PC.

17. AUTOMATIC DESTINATION
Destination of the product is entered when the order is
created; therefore the destination distributor is
automatically set by the PLC when that order reaches
the surge bin.
This destination bin is recorded with this order for
shipping module.

18. SHIPPING MODULE
A truck scale is interfaced to the PLC.
Positions of the gates on the overhead shipping bins are
monitored.
Once a bin is opened and button pressed for acceptance,
the truck weight is recorded back to the original order.

19. Intelligent Scale Controllers
This controller record, store and display scale weights
along with truck ID, vendor ID, commodity ID, tare, net
and gross weights.
This information can be transferred to other devices for
future storage and processing

20. Future growth and applications
There will be increase in processing power, advanced
programming languages and user configurable or
programmable software
Most powerful and faster computers coupled with abundant
memory and creative software will create tremendous
capabilities for feed mill control systems.
The most dramatic increases come when plant floor
operational information is coordinated with production
planning and scheduling system.

21. Flow Chart of Animal Feed Pellet
Line

22. Feed pellet line process: Silos for raw materials storage,
Raw materials receiving system, First batching system,
Mixing system, Second batching, Crushing system,
Pelletizing system, Cooling system, Bagging system.

23. Feed Production Processing

24. •The hammer mill is an important equipment
for the raw material grinding process.
•The hammer mill can grind the raw materials
ingredients into the required size.
• It is suitable for small or medium sized
feedstuff pellet mill plant.
•While if you manage a large scale feedstuff
pelletizing factory, the water drop hammer mill
is an ideal choice.

25. •Mixing is one of necessary processing in
animal feed pellet line.
• Proper mixing will lead to increase diet
uniformity and improve the feedstuff quality.
Two kinds of high efficiency feed mixers: twin
shaft mixer for particle materials and screw
belt mixer for powdered materials.
•Both of them are equipped with atomizing
spraying system to add needed liquids which
can improve feed pellets quality

26. •Feed pelletizing machine is the key
feed equipment for the animal feed
pellet line.
• The feed pelletizing machine is the
ring die design which is broadly used to
large capacity feed pellets production.

27. •Getting out of the feed pelletizing
machine, the feed pellets with high
temperature and large moist need
cooling by counterflow cooler.
•The these feed pellets can be crushed,
screened or packed. Through the
cooler, the feed pellets are decreased
the temperature and moisture for next
processing

28. •Because different animal such as
poultry, cattle and pig feed pellets are
with different sizes. Some big feed
pellets should be crushed into small
particles.
•The feed pellet crumbler is the right
equipment for the feed pellets
crushing. The double roll feed pellet
crumbler is suitable for crushing animal
feeds like poultry, pig and cattle feed
etc..

29. •By feed pellet crumbler, there may be
some powder in the pellet feed.
•The rotary grading sieve is used to
screen and grade the feed pellets.
• After this processing, you can get
qualified feedstuff pellets without
powder

30. •In order to pack for storing,
transporting and selling,
•automatic packing machine can weigh
and pack the feedstuff pellets
automatically with high accuracy.

31. Advantages of feed pellet line
1. Gelatinisation of starch
2. Animal will have feed with balanced nutrition. Feed wastage is
reduced
3. The material of feed will get ripe during pelletizing. This gives
feed a better tasty and digestibility that will accelerate animal
growing faster and healthier
4. Processing feed to pellets can make the storage and
transportation conveniently. Pellets can be sealed to avoid damp
and degeneration so that keep the nutrition well
5. Destruction of pathogenic organisms