Shrimp Feed Pellet Machine

Applications Of Shrimp Feed Pellet Machine

With the increasingly fierce market competition, the past days of high profits for feed producers are gone. Now shrimp feed producers, shrimp feed suppliers, shrimp feed factories, and shrimp feed companies are almost operating at meager profits; in addition, the homogeneity of feed products is increasing. The more serious it is, the more intense the market competition is.

This situation requires the aquatic feed factory to find various methods in the shrimp feed machine and shrimp feed production technology to reduce shrimp feed mill production costs, improve product quality, and ensure the competitiveness of products and shrimp feed plants in the market.

Compared with fish, shrimps and crabs have different requirements for shrimp feed production technology due to their nutritional requirements, physiological functions and living habits.

Technical Features Of Shrimp Feed Pellet Machine

The new generation of shrimp feed pellet mill system from RICHI Machinery offers saving energy aspects to the system by effective heat utilization of cooler exhaust air in the dryer and cooler combination. The exhaust air from the cooler is reused as make-up air for the dryer, thus attaining efficient energy utilization and energy saving.

• According to different requirements, the shrimp feed machine can make variety shapes of high-grade feed pellets for fish, shrimps .etc
• Service time of the shrimp feed pellet machine ring die with hole diameter Ø1.8mm is up to 8500t, with continuous production of 2500h and output of over 8.5t.
• Double-layer jacket insulation conditioner and double-shaft differential conditioner. Optional hygienic conditioner of the prawn feed machine, better maturing performance.
• The improved feeding scraper of the shrimp feed making machine divides material into two pressing areas, ensuring smooth discharging and stable operation.
• Electric heating device of the prawn feed making machine is adopted which can improve the feed expansion rate and pellets floating time.
• The shrimp feed pellet mill machine is equipped with pneumatic external discharging structure, realize automatic external discharging when it is blocked or overloading of the main motor current.
• The shrimp feed making machine cutter can be adjusted to make pellets of different length.

Working Principle Of Shrimp Feed Pellet Machine

The processing method of the shrimp feed pelletizer is that various raw materials are accurately weighed by the batching scale, and then pulverized by a micro-pulverizer and then mixed in the shrimp feed mixer. After the materials are evenly mixed, they enter the conditioner for conditioning, and then shrimp feed are pressed into pellets by the shrimp feed pellet making machine, and finally cooled by the cooler to obtain the final product.

Different Shrimps in different growing stages have different demands for feed pellet size, therefore, choosing the right crushing technology and shrimp feed machine is very important.

The feed processing industry has undergone tremendous changes in the past 20 years. Expansion processing of poultry feed and piglet feed, as well as extrusion processing of fish feed have been generally accepted and adopted.

However, pelleting technology by shrimp feed pellet machine is still used in the production of shrimp feed, because the cost of pelleting by shrimp feed pellet machine is lower than expansion and extrusion by shrimp feed extruder machine, and shrimp is eaten underwater. As long as shrimp feed manufacturers can find ways to improve the water stability of pellets, they can avoid using extrusion method to produce shrimp feed. 

In general, the equipped conditioner for shrimp feed pellet making machine consists of:

1. Differential Diameter Conditioner
   This is used for pre-cooking of the material, steam enters through the nozzles and is mixed with the raw material.
2. Long Term Conditioner
   This is used for retention time during cooking, usually placed below the DDC, to prolong the material cooking time.
3. Single Shaft Conditioner
   There are two kinds of SSC, with and without heat jackets. The SSC is used for heating the material (by heat jacket or direct steam injection), breaking lumps that are formed in the LTC, and continuous feeding to the shrimp feed pellet mill.

Parameter And Model Of Shrimp Feed Pellet Machine

Shrimp feed can be produced by two methods, pelleting or extrusion, depending on the dietary of the shrimp species. For the majority of the markets in Asia, pelleting solutions are still highly recommended.

Here, RICHI will give a comprehensive description of the shrimp feed milling system. If you are interested to know more about the extrusion process, you can find more in aqua fish feed production line solution.
 

01

Raw material intake system

Raw material intake system consisting of tip hopper, mechanical conveyors, and elevators into storage bins. Raw material such as soybean meal, corn, fish meal, and other grain or powder is sieved to remove any impurity and metals.

02

Pre-grind systems

Pre-grind systems are a size reduction process for raw materials that contain large particulates or grains by hammer mills. Pre-ground material is conveyed to storage bins. Storage bins are used for the temporary storage of raw materials.

03

Formula batch dosing system

Formula batch dosing system weighing hoppers to proportionally weigh dry ingredients by batches based on every formulation.

04

First mixing system

The first mixing system is used for dry material mixing to stabilize the following process.

05

Pulverizer grinding system

Pulverizer grinding is the second grinding process that grinds the formulation into finer powder with fineness up to 80 mesh 95% pass.

06

Second mixing system

Other sources like pre-mix, liquid, oil, and fat are now added and mixed with raw material by batches. This is the step where the mixed recipe is ready.

07

Pelleting with Pre-conditioning

The mixer feeds down through a feed hopper into the feed screws which continuously feed the ingredients into the following pre-conditioner system. The configuration of the pre-conditioner will depend on the type of ingredient that we produce.

A specially designed pellet die and roller shell with the right compression ratio is set to produce the compact and tough pellet with higher PDI shrimp feed.

08

Post-conditioning and drying

This process is designed to prolong pellet cooking by providing a hot temperature to avoid condensation. Depending on the moisture of the pelleted feed, a dryer can be incorporated into the production system to lower the moisture of the pellet to a shelf-stable moisture level.

09

Cooling system

Shrimp feed pellet cooler machine lowers the temperature of the hot pellets to + 3°C of room temperature by utilizing the ambient air.

10

Pellet crumbling system

Pellets are conveyed into storage bins before either being packaged or being turned into crumble in the crumbling machine. Pellets can be processed by crumblers to produce smaller pellets. (Sizes between 20 to 60 mesh) Fines will be recycled to the pellet mill section for re-use and undesired bigger pellets that pass through the sieve will be re-crumbled again.

11

Screening system

All shrimp feed pellets will go through a vibration sieve to remove any irregular pellets or dust.

12

Shrimp feed bagging and sealing system

Finished shrimp feed pellets will be placed in bags or other transportation vessels to the reseller or customer site.

Our shrimp feed production line design philosophy is to work continuously to refine and improve processes and equipment to maximize the success of our customers. The following are main shrimp feed making machines needed in a complete shrimp feed mill plant project:

Shrimp Feed hammer mill

Capacity:
3-25T/H

Main Power:
30-160KW

shrimp feed mixing machine

Capacity:
250-2000KG

Main Power:
4-55KW

Rotary Distributor

Capacity:
30-60T/H

Main Power:
0.55KW

ultra fine powder grinder

Capacity:
1-12T/H

Main Power:
90-220KW

shrimp feed pellet mill

Capacity:
0.1-6T/H

Main Power:
22-315KW

Shrimp Feed Extruder machine

Capacity:
0.03-12T/H

Main Power:
0.75-355KW

Shrimp Feed Drying machine

Capacity:
2-12T/H

Main Power:
44.3-71.8KW

shrimp feed Pellet Cooler

Capacity:
3-25T/H

Main Power:
30-160KW

shrimp pellet screening machine 

Capacity:
3-20T/H

Main Power:
1.5-5.5KW

High Square Screen

Capacity:
3-20T/H

Main Power:
1.5-5.5KW

shrimp feed Spraying Machine

Capacity:
3-15T/H

Main Power:
22KW

shrimp feed Packaging Machine

Speed:
6-12 Bags/Min

Main Power:
1.1-5 KW

latest shrimp feed machine and aqua fish shrimp feed plant project

Richi Machinery is one of the aqua feed mill manufacturers in China, we have rich experience of providing complete aqua shrimp feed plant solutuions and aqua shrimp feed making machine for various fish feed, shrimp feed, etc.

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How to identify the production quality of shrimp feed made by shrimp feed machine

There are many shrimp feed types, and the same type of shrimp feed also has different grades of products, and its quality requirements are also very different. This requires some standards for judging the quality. In general, it can be judged whether the quality of the shrimp feed is good or bad.

1. Feed appearance of shrimp feed made by shrimp feed making machine
   The appearance of shrimp feed is the primary criterion, and the market's acceptance of a feed largely depends on the appearance. The surface of the better shrimp feed should be smooth, the cut is flat, the size is uniform, the length is the same, and the color is uniform;
2. Water resistance of shrimp feed made by shrimp feed pellet machine
   If the appearance is to judge the "appearance" of the shrimp feed, and the water resistance is to judge the "intension" of the shrimp feed. The shrimps remain granular before eating, which on the one hand helps to promote the eating of the shrimps, on the other hand, it is also beneficial to keep the nutrients of the feed from losing, protect the water body, promote the digestion and absorption of the shrimps to the feed, and increase the ratio of feed to meat.
   The water resistance of shrimp feed requires that the feed can be fully softened within 20-30 minutes after soaking in water. There is no hard core in the feed when it is kneaded by hand, and it will not spread when it is flattened. After 2-3 hours of water resistance, the feed will swell without falling apart or breaking.
3. Powdering rate of shrimp feed made by shrimp prawn feed machine
   Another important indicator for measuring shrimp feed is the powdering rate. The powdering rate is that a fixed weight of shrimp feed (500g) passes through a rotating box for 10 minutes, and after 500 impacts, it simulates the force that shrimp feed receives during transportation, cooling, and packaging, and then weighs the resulting fine powder to determine the proportion in the feed.
   Reducing the powdering rate of shrimp feed can effectively reduce the waste caused by the dissolution of feed powder in water, protect water quality, and effectively reduce feed cost and bait coefficient.
4. Color of shrimp feed made by shrimp feed machine
   The color of shrimp feed is not only related to the granulation process, but also affected by the post-curing effect. A better shrimp feed should be consistent in color, uniform and oily.

What factors will affect the formulation of shrimp feed?

Two perspectives are influencing the formulation: culturing performances and efficiency of the machinery. For example, choosing the right starch source (types of flour) is essential. Inappropriate starch sources will lower the steam incorporation level and causes jams at the pellet mills.

Fat and moisture content play inseparable roles in the hammer mill and pulverizer throughput. Formulation with high fiber content not only increases the risk of broken pellets, lowering the water stability of the pellets.

High fiber content also increases the wear of all machinery in the process. Reducing the use-life of the parts such as the hammers, screens, and dies.

In the shrimp feed processing technology, why is it necessary to use two crushing processes?

We firmly believe in the benefit of even particle reduction to ultra-fine powder. The typical target is to reach more than 95% passing through a 60 mesh screen.

It is impossible to efficiently produce small-size products with size 2.0 mm and below without this ultra-fine grind process. Ultra-fine grinding will increase production efficiency and end product quality during the production of larger-size products. It will also open the possibility to utilize less expensive starchy ingredients.

RICHI Machinery understands that many production practitioners might worry about the extra energy cost of utilizing a pulverizer, which is why we designed a revolutionary pulverizer that runs at much lower energy costs.

The ability to substitute with cheaper ingredients cost will compensate for the small extra energy requirement of the pulverizer. The ultra-fine raw material will produce smooth, shiny, and water-stable products.

In a shrimp feed processing plant, is it necessary to add a pre-hydration process?

We always recommend the pre-hydration in pre-pelleting mixers. The hydration of dry ingredients at this production stage improves the throughput, lowers energy costs, and increases product quality.

To evenly feed the pre-hydrated mix to the pellet mill, we supply an activated semi-cylindrical hopper system, with slowly rotating paddles.