Double-line extruded aquatic feed production line

Specializing in the production of feed machinery and engineering, it can provide customers with livestock feed (pigs, etc.), poultry feed (chicken, duck, geese, etc.), ruminant feed (cattle, sheep, etc.), ordinary aquatic feed (four major home fish, etc.), and special aquatic products Complete equipment solutions for feed (shrimp, crab, etc.), extruded aquatic feed (floating and sinking fish feed, shrimp, etc.), premix (including various additives, etc.), pet food (cat food, dog food, etc.), Meet the different needs of customers.

Extruded aquatic feed is the feeding of powdered feed materials (containing starch or protein) into the extruder, after continuous mixing, conditioning, heating, pressurization, extrusion die holes, sudden pressure reduction, and cutting into pellets, and drying It is a kind of bulky and porous pellet feed produced by the process of, stabilization, etc.

Process introduction:

The characteristics of extruded aquatic feed are fine pulverization (60-100 mesh required), high maturation and conditioning requirements, high oil content (using a combination of mixer + extruder + post oil injection), and the range of finished particle diameters Wide (particle diameter is about 0.6-20mm). The double-line puffed aquatic production line is designed to produce 6-12T/H per hour. It adopts primary crushing, primary ingredient mixing, secondary ultrafine crushing, secondary mixing, puffing, drying, spraying, cooling, and the final product is packaged. The total power of the equipment is approximately: 1496KW; the construction area of the production area is approximately 30.6×12.5×31m (height); it is equipped with 2 2T or 1 4T boilers. The whole line has compact design, reasonable structure, meets environmental protection requirements, and can be oriented design according to customer requirements.




Raw materials: Puffed aquatic products are mainly protein raw materials, including grains, flour, soybean meal, rapeseed meal, rice bran, bran, fish meal, blood meal, oil, premix, etc.

Process characteristics and section introduction:

Raw material receiving and cleaning section: In this section, the pellet feeding cleaning and powder feeding cleaning are separated independently, and the dust is removed separately, and the dust removal effect is good.

Cleaning equipment: SCY80 granular material sieve, designed to produce 20-30T/H per hour; powder sieve SQLZ60×50×100, designed to produce 10-15T/H per hour.

One-time coarse crushing section: This section adopts one crusher and two smashing bins, and the crushing varieties can be changed alternately. Before the raw materials enter the warehouse, impurities are removed by a magnetic separator to ensure the safe operation of the crusher.

Crushing equipment: crusher SFSP668×800, 110KW, designed to produce 10-14T/H per hour (¢2.0mm sieve hole).

One-time batching mixing section: This section uses 18 batching bins, equipped with two batching scales for simultaneous batching, controlled by the batching program independently developed by our company, to achieve accurate fast and slow feeding, fast batching speed, and high precision.

Weighing equipment: batching scale PCS15/PCS05, batching accuracy: dynamic ≤ 3‰, static ≤ 1‰.

Mixing equipment: mixer SHSJ3, (22KW, 1500kg/batch), designed to produce 15-18T/H per hour. Mixing uniformity CV≤5%.

Ultra-fine powder section: Because the extruder has relatively high requirements for the fineness of raw materials, generally 60-120 mesh, this section uses two ultra-fine pulverizers, each equipped with two warehouses to be crushed, which can be stored and discharged in turn. To reduce the idling time caused by the replacement of the superfine pulverizer, it adopts wind-driven discharging, equipped with brake dragon, pulse dust collector, and the pulverization fineness can be adjusted.

Ultrafine powder equipment (2 sets): SWFL130, 160+15+2.2KW; design hourly output: 3-6T/H/set.

Secondary batching mixing section: This section adopts 4 secondary batching bins (all round bins), equipped with a batching scale, and sharing a batching computer with the primary batching, which is convenient for the same central control personnel to operate.

Weighing equipment: batching scale PCS15, batching accuracy: dynamic ≤ 3‰, static ≤ 1‰.

Mixing equipment: mixer SHSJ3, 22KW, 1500kg/P, designed to produce 10-15T/H per hour. Mixing uniformity CV≤5%.

Expansion section: This section adopts two twin-screw extruders, and each extruder is equipped with a warehouse to be puffed. The puffing warehouse is designed as a round warehouse and equipped with a pan feeder to prevent the material from arching and discharge smoothly. .

Puffing equipment (2 sets): SPHS130×2, 185+4+4+15+1.5KW, design output per hour: 3-6T/H/set (discharge aperture 4.0mm), drying equipment (2 sets): SHGW240 ×2-7, 0.75+1.1×2+7.5×10+0.75KW, design output per hour: 4-6T/H/set

Spraying and packing section: This section uses two sets of roller grease spraying equipment, equipped with a pneumatic tee before entering the equipment, and whether the finished particles are sprayed or not can be selected according to the requirements of different formulations. Post-spraying solves the requirement that the amount of oil added in the early material should not be too much to meet the requirements of the amount of oil added, and the feed after spraying has a good appearance, strong palatability and strong nutrition. The fuel-injected materials are filtered and packaged after being cooled by a pendulum cooler.

Roller spraying machine (2 sets): SYPG1000, 2.2KW, design hourly output: 4-6T/H/set, pendulum cooler (2 sets): SKLB6, 1.1+1.5KW, 6m³ volume, design hourly output 6-8T /H/Taiwan.

Packing equipment (2 sets): a fast single-bucket particle scale for extruded materials, with a packing range of 20-25kg/bag, 4-6 bags/min.

Auxiliary section: Dust removal system, dust removal at the packing mouth, improve the working environment of workers; grease addition system, water addition system, improve the palatability of feed.



According to the needs of different customers, the solution can be optimized for configuration:

1. This scheme uses a single-point dust removal mode, that is, each rotary distributor (powder) and granular material cleaning screen is equipped with a pulse dust collector, which has a good dust removal effect. Single-point dust removal is a humanized design for our company, providing a better working environment, but the cost increases, and customers can consider whether to adopt this configuration according to actual needs;

2. The number of silos can also be adjusted according to the customer's formula, the characteristics of the raw materials and other factors to achieve the highest utilization rate and effectively control the production cost;

3. The installation form of the silo can also be fabricated or welded. The cost of fabricated silo is higher, the installation on site is quick and convenient, the cost of welding silo is lower, the workers are welded on site, the labor intensity is large, and the time is long. Users can choose reasonably according to their own needs;

4. The automatic batching mixing process used in the secondary mixing in this project has a high degree of automation. If the user needs to control the investment cost, the batch-type non-automatic batching mixing process can also be used, and normal production can also be carried out, but the batching efficiency will be reduced. reduce;

5. The drum spraying equipment is used in this project. The recommended amount of grease should not exceed 8%, and spraying can only be carried out on the surface of the particles; if the customer needs to further improve the quality of the product and increase the amount of fuel sprayed, vacuum spraying can be used The machine is conducive to the absorption of grease in the core of the particles.