Specialized Animal Feed
Other than chicken feed, duck feed is also a major type of poultry
feed. The formulation for duck feed contains a high concentration of
fiber and makes the mash very puffy. It is a rule of thumb to know
that it is relatively harder to treat any formulation with a high
fiber level using massive direct steam. Over-dosed direct steam will
eventually create cracks on the surface. The concentration of fiber
and pellet quality is equally proportional. However, a high
concentration of fiber will lower the efficiency of pelleting
capacity. Around one percent of water can be added to the mixer to
compensate for any raw material for pre-hydrating. This pre-hydrating
by the mixer will help in the pelleting process.
Raw Material
The raw material for cattle feed consists of coarse and powdery
material
15 Dec（你看不見，這個理論上可以不要加）
Pre-grinding
Optional step for coarse material.
Pre-grinding will lower the
energy needed for ultra-fine grinding.
Daily Tank Storage
Daily tank storage will contain the material needed for production
that day.
Some material from the silo will be placed in this daily tank
before entering the flow of feed production.
Dosing and Weighing
The material will be dosed based on the formula.
Post-grinding
Post-grinding is the final size reduction in the system.
It is common to use a pulverizer for producing ultra-fine powder.
Mixing
In this step, trace ingredients such as vitamins, minerals, and
other liquid materials will be added.
Powder Feed (Mash Feed)
Pelleting
Pelleting starts with pre-conditioning, adding steam to further
hydrate, and cooking the material before entering the pelleting
chamber to be formed into pellets.
Cooling
Cooling utilizes ambient air to cool down the hot pellet from the
post-conditioner (or dryer).
Thorough cooling is needed to prevent condensation inside the
packaging.
Pelleted Feed
Crumbling
In animal feed production, it is common to crumbler the feed.
This particle reduction is needed for easier consumption in
smaller animal or poultry
Packing
Packing gives protection to the pellets and also give easiness to
handle and transport to customer's hand
Pelleting process description for specialized animal feeds
Raw material silo and intake systems
Corn, soybean, rice, and other macro ingredients are stored and conveyed
to an individual silo.
Dosing and weighing are used
for the temporary storage of raw materials.
Grinding system
When required, coarse or fine grinding will be done to reduce the
particle size.
Mixing system
Depending on the formulation some liquid, fat, or molasses will be added
to the mixer. The well-mixed mash can be directed to the finished
product bins for bagging or carried away by trucks in bulks when
producing mash feed. The mash feed can also be directed to the pellet
forming machine.
Pelleting with Pre-conditioning
Well-mixed mash is fed to a pre-conditioner where the mash will be
heated either by steam or electric heater, to kill salmonella and other
harmful bacteria. Pre-conditioned mash feed is then pelleted.
Cooling
The counterflow cooler is used for cooling pellet and extrudate. Warm
(hot) pellets get into the cooling chamber, the suction fan will
transport out the air inside the chamber, and fresh ambient air will
enter the chamber from the bottom, promoting pellet cooling action. When
pellets are accumulated and touch the high-level limit sensor, a
pneumatic discharge swivel valve will operate immediately to discharge
the products. Counterflow air heat exchange ensures to achieve high
cooling efficiency. Pellet is cooled until reaching ± 5 °C from the
ambient temperature.
Impurity and dust sieve
Pellets are conveyed through a sieve to remove impurity and deformed
pellets. Fines and deformed pellets are recycled back to bins before the
pellet mill. The sieved pellet of different sizes is stored in
individual bins.
Bagging and sealing system
Finished pellets will be placed in bags or other transportation vessels
to the reseller or customer site.
Pellet crumbling system
IDAH crumbler series is designed for high capacity and highly efficient
particle reduction. Three types are available for every industry
application. Every crumbler is equipped with the feeder on the top, to
control the throughput of the product. The roll gap is easily adjustable
to achieve the required granulation.
Features and Benefits of IDAH Process Design and Equipment
IDAH firmly believes in a strategy of design fit for purpose. We
recognize the constraints our customers face with rising ingredient
costs, energy costs, and overheads costs, yet in the face of these
challenges, it is still expected that high-quality products be supplied
into a very competitive market. Our design philosophy is to work
continuously to refine and improve processes and equipment to maximize
the success of our customers. The following describes some of the
features and benefits resulting from this philosophy.
Good pre-conditioning for poultry feed
Poultry feed contains a high amount of grains and that means a high
concentration of fiber. Good quality of pre-conditioning is the key to
success in making poultry pellet feed. Enough direct and indirect steam
heat source and moisture will soften the mash with high elasticity.
cooked starch is the perfect binder to form pellets.
The suitable amount of fat addition
Too much fat added in the formulation will create a high amount of fines
formation during pelleting. It is suggested to add 1% of fat in the
mixer and this will lower the wear on the dies and improve the
throughput of the pellet mill. Any additional fat is suggested to evenly
spray on the pellets to improve the fat contents and quality of the
pellet surface.
Specification of Pellet Mills (for Poultry feed)
| Model |
PM-42R |
PM-51R |
PM-53R |
PM-53F |
PM-635D |
| Main Motor (HP) |
125 |
150 |
200 |
215 |
300 |
| Operation Capacity1 (t/h) |
3-4 |
4-5 |
6-8 |
10-12 |
13-15 |
Note:
1) Broiler Chicken Feed, pellet die hole
size Ø 3.0 mm, moisture content<12%, oil content <7%