Originally, the customer only required to design a 2t/h extruded fish feed line, and in the standard plan of the 2t/h extruded line, the crushing and drying systems are on the second floor, but due to the height limitation of the customer’s factory building (up to 6 meters), and can’t break the top, so the basic plan is replaced by a horizontal plan.

(Generally speaking, in the standard design of 2t/h extruded fish feed line, all conveying equipment usually adopts the air conveying system, but due to the height limitation of the customer’s workshop, RICHI added horizontal screw conveyors and curling conveyors to reduce the height of entire shrimp fish feed processing line. In addition, the design of the raw material cleaning system and the cleaning system are also adjusted to suit the height of the production line.)

In addition, the fish feed production line plan has also been adjusted in terms of equipment configuration according to the budget. Because customers want to enrich their product range and increase the production of hard pellet fish feed and shrimp feed. But the cost of processing shrimp feed and sinking fish feed with an extruder is too high, and customers are well aware of this. But for RICHI, what we have to do is to use professionalism to solve customer problems.

Therefore, in response to the different dimensions of customers, we adjusted the feed pellet production line plan again, changed this fish feed production line to a composite production line, and added a three-layer conditioner ring die feed pellet machine and post-curing device to the production line.

(Actually, it is also possible to use a twin-screw extruder to process fish feed and shrimp feed, but many professionals know that in this case, the cost of feed processing is too high. Although there are also aquatic feed companies that do this, but more Aquatic feed processors will choose to use pellet mills to make shrimp feed and sinking fish feed, which is also a mainstream process in the current feed industry.)

In this process, the mesh belt dryer is also used as a post-cooker when processing shrimp feed, and together with the newly added post-cooker, it contributes to the maturity of the feed.

When processing fish feed, post-curing is generally not required, but if customers want to improve the quality of fish feed and increase feed remuneration, they can turn on the post-curing machine or mesh belt dryer.

In addition, the customer is also considering that it will start processing livestock and poultry feed in the later stage.

Compared with aquatic feed, post-curing is not required for processing livestock and poultry feed, but it does not matter, our engineers have also considered this point: the mesh belt dryer can still be turned on, but no heat is supplied to it, only the conveying function needs to be turned on, let the mesh belt run; then open the discharge port of the post-cooker.

Actually, our engineers hesitated when adding granulator and post-curing machine, because there is a more efficient process; but under the premise of taking into account high-quality process design and customer budget, our engineers optimized the design again, and finally decided , When processing different feeds, a set of coolers and packaging machines are shared to save customer costs.

It is worth mentioning that Iran has strict requirements on environmental protection. Therefore, the production line is equipped with dust removal equipment, which is very necessary in the environment that promotes green production.

• Feeding. The project is equipped with a special feeding room, in which large-diameter materials such as corn, sorghum, and soybean meal are set up with a special feeding room for closed feeding. The feeding room is closed during the feeding process, which can be regarded as 100% airtight. Small particle size powders such as vitamins, minerals, and trace elements are manually fed. After two sets of bag dedusting treatment facilities are set up, they are led to an 8m exhaust pipe for discharge. Very little dust is generated during the feeding process.
• Crushing section. The dust generated in the crushing process is collected and processed by a pulse bag filter, and the dust concentration is lower than 120 mg/m3, which meets the local Iranian standard.
• The imported super steam fish meal used in this project, because the raw material supplier has steamed the fish meal in advance, the fishy smell of the raw material itself is smaller than that of the conventional fish meal. The curing and drying process is the main odor generating process of the project. For such waste gas, photochemical oxidation and deodorization device should be used for treatment, and the treated waste gas will be led to the roof of the workshop through a 40m-high exhaust pipe.