20-25 T/H Fish Feed Production Line In Peru

• Project nature: New construction
• Project investment: US$3.1 million
• Annual output: 150,000 tons
• Hourly output: 20-25 tons
• Number of employees: Labor capacity 80 people
• Working system: three shifts 24 hours a day, 250 days of annual production
• Factory layout: The production workshop of this 20-25 t/h fish feed production line in Peru project is located on the east side of the factory, the boiler room is located on the north side of the factory, downwind of the factory, and the remaining workshops are storage workshops.
  The factory layout is compact and reasonable, making transportation convenient. The project's functional divisions are clear, the layout is compact, the production process is smooth, and cross-interference is reduced, which is conducive to safe production and easy management.

Construction Content

This 20-25 t/h fish feed production line in Peru expansion project uses the newly purchased land covering an area of 2436m2 to build a main production workshop, a finished product warehouse and a raw material warehouse. The main fish fee production lines of the project are arranged in the main production workshop of the factory.

Main products and production capacity

The product plans for the 20-25 t/h fish feed production line in Peru expansion project are detailed in the table below:

Main raw material consumption

Equipment of the 20-25 t/h fish feed production line in Peru

Fish feed manufacturinig process design

According to the customer's needs, the fish feed process flow designed by RICHI engineers for the customer is as follows: after the raw materials fish meal and soybean meal are crushed and mixed, they are expanded and dried using boiler steam to form expanded feed, which is then oiled and cooled before being screened and packaged into bags.

Process Description:

Feeding

The types of raw materials used in the 20-25 t/h fish feed production line in Peru project include powders and granules. The powder does not need to be coarsely crushed, but directly passes through the feeding pit and elevator, and then enters the conical cleaning screen to remove impurities.

After magnetic separation, it directly enters the batching bin through the distributor or spiral auger to participate in the first batching; granular materials need During the coarse crushing process, the material enters the cleaning equipment through the unloading pit and elevator for magnetic separation and impurity removal, and then enters the bin to be crushed.

After coarse crushing, the material enters the batching bin through the elevator and distributor to participate in the first batching. Primary coarse grinding is the pre-treatment process of ultra-fine grinding in aquatic feed processing.

The main purpose is to reduce the particle size difference and variation range of materials, improve the working conditions of the ultra-fine grinder, improve the working efficiency of the ultra-fine grinder, and ensure stable product quality.

Ingredients and mixing at one time

The first batching is mainly the preparation of mass raw materials, that is, the preparation of materials with a large proportion in the formula. This process is mainly completed by electronic batching scales.

After the batching is completed, the first mixing begins. The first batching and mixing is the pre-processing process of ultra-fine grinding, which can reduce the variation range of material particle size, improve the working condition of the crusher, increase the crushing efficiency, and ensure the quality of the product.

Crushing

Due to the low food intake of aquatic animals, short digestive tracts, and poor digestion capabilities, aquatic feeds are required to be crushed into very fine particles. For example, all shrimp feeds must pass through a 40-mesh analytical sieve, and less than 5% of the 60-mesh sieve will pass through.

Therefore, it must be processed crushing process. In the secondary crushing process, the primary mixed materials are lifted and entered into the bin to be crushed, and then enter the crusher. After the crushing process is completed, they enter the rotating classification screen to remove the fine fluff formed by the coarse fibers in the feed during the crushing process.

Secondary mixing

Each raw material enters the secondary mixer after secondary batching. There is a manual feeding port above the secondary mixer for adding trace additives. There are two liquid adding devices on the mixer for adding grease and water respectively.

During the secondary mixing process, each material must be thoroughly mixed, and the coefficient of variation CV is less than 5%. After being finely pulverized and mixed with secondary ingredients, the material enters the subsequent process - the puffing and granulating process.

Tempering and puffing

Puffed material: In the extrusion and puffing process of 20-25 t/h fish feed production line in Peru project, the material is cooked for a period of time under high temperature, high humidity, and high pressure.

During this process, the physical and chemical properties of the material undergo drastic changes (mainly starch gelatinization and protein denaturation). The pressure drops sharply at the moment of extrusion, and the moisture in the feed is converted from liquid to gaseous state, and is emitted from the feed, causing the material to expand, forming so-called expanded feed.

Drying

Dryers are Multi-pass Convection Belt Dryers. After the materials are formed, they form wet and soft pellets (moisture content is 25% to 30%). In order to reduce the breakage of the pellets, pneumatic transportation should be used to enter the dryer. Drying is carried out to reduce the moisture content of the material to about 13%.

Spraying

After the material is dried, it enters the external spraying system, and the surface of the pellet feed is coated with oil, vitamins, flavoring agents, etc., which not only meets the energy needs of fish, but also reduces the loss of heat-sensitive substances during processing.

It can also improve the palatability of feed and reduce the powder content. After the material passes through the external spraying system, it needs to be cooled and crushed.

Cooling

The air cooling principle is used to cool the product through a cooler or cooling tower.

Product grading and packaging

The cooled materials are lifted and crushed and then enter the grading screen for classification. The classification screen generally consists of two layers of sieves.

The upper screen sieve needs to be returned to the crusher for crushing; the lower sieve sieve is generally fine powder, which can be returned to the expansion bin for re-forming; the lower sieve sieve is The finished products go directly into the finished product warehouse and are then weighed and packaged.

Project environmental protection measures

Waste gas control measures

The 20-25 t/h fish feed production line in Peru project boiler uses natural gas as the heat source. Natural gas is a clean energy. According to the source strength analysis and calculation, the SO2, NOx and smoke in the natural gas combustion exhaust gas of the project can meet the "Boiler Air Pollutant Emission Standard".

Therefore, the boiler exhaust gas of this project is collected and processed for 1 Emissions from a 15m high chimney can meet relevant emission standards.

Noise control

The main source of noise in this 20-25 t/h fish feed production line in Peru project is the use of crushing, screening and other machines. Its noise value is generally between 80 and 95 dB (A).

After taking corresponding noise reduction measures, the factory boundary can reach the limit value in the "Environmental Noise Emission Standard for Factory Boundaries of Industrial Enterprises" (60dB during the day and 50dB at night).

Solid waste management

The solid waste of the 20-25 t/h fish feed production line in Peru project is mainly employee domestic garbage, waste packaging bags and sewage treatment station sludge, which are not hazardous wastes.

At the same time, this project uses a fully enclosed production line for feeding, and the dust and grease generated during the process are recycled as raw materials for the project, so no solid waste is generated during the feeding process.

• Waste packaging bags:
  The raw materials of the project are packed in bags. Waste packaging bags are generated during the production process. The amount of waste packaging bags generated is about 70t/a. The waste packaging bags are general solid waste. The company collects them and sells them to recycling units.
• New sludge added to sewage treatment station:
  Sludge is produced during the treatment of wastewater in sewage treatment stations. Referring to the empirical coefficient, the sludge production volume is three ten thousandths of the wastewater treatment volume, and the sewage treatment volume of the expansion project is 2800t/a. Then the sludge production amount is 0.84t/a, which is general solid waste.
• Domestic garbage:
  There are 120 new employees in this 20-25 t/h fish feed production line in Peru expansion project. If the domestic waste production per person per day is 0.5kg, the project will produce 60kg of domestic waste (15t/a) throughout the year.

Why build an aqua fish feed production line in Peru?

In 2023, the Peruvian Ministry of Production approved a national aquaculture policy to promote the development of the country's aquaculture industry.

With the introduction of policies, Peruvian aquaculture industry will become more competitive, sustainable, climate change resilient and diversified, with total sales expected to more than double in 2030 compared to current levels. The policy will help small-scale aquaculture producers develop and increase exports in South America and the Caribbean.

The PNA has five clear goals to achieve thrust and growth in aquaculture:

• Strengthen public administration;
• Develop the competitiveness of the aquaculture value chain;
• Improving the research and development capabilities of the aquaculture industry;
• Increase investment in enabling factors in the aquaculture value chain;
• Strengthen the sustainability of aquaculture and consolidate the market participation of aquaculture companies.

Obviously, in order to increase the sustainable production of Peruvian aquaculture, more Peruvian aquatic product processors will gradually shift towards "investment in favorable factors", which includes the exploration of farming models and aquatic feed processing.

In addition to this 20-25 t/h fish feed production line in Peru project, we have currently established multiple livestock and poultry feed production lines in Peru, such as 5T/H Customized Animal Food Processing Plant in Peru, etc. If you are interested in our projects in Peru, contact Richi Machinery to customize your feed production line solutions to get more returns from your feed processing business!