What equipment is needed in pet food production?

Pet snacks

Many people like to add snacks to their pets. According to statistics, in 2019, the sales volume of pet snacks of the top branded pet snacks on Tmall platform reached more than 77 million yuan, showing the huge potential of pet snacks in the market. The production of pet snacks is inseparable from the role of pet food machinery and equipment.

Pet snacks use a variety of raw materials. From the perspective of palatability, most snacks use fish and poultry as raw materials for snacks. Most of the raw materials for dog chews are animal skins and plants. However, most of the products that remove bad breath are biscuit style, mainly fruits and vegetables. This shows that the raw material processing stage of pet snacks needs to be processed with corresponding food machinery and equipment according to different raw materials.

Taking animal skin chews as an example, the process of dehairing and cutting animal skins needs to be completed before production. As a flexible material, animal skins need to be checked and replaced regularly.

2. Pet snacks with meat as the key raw material are usually baked, freeze-dried, steamed and other different methods after production and processing. Oven machinery and equipment have a certain adjustment effect on temperature and time. According to the control of these conditions, pet snacks of different hardness can be produced, and the palatability of the snacks can be adjusted. Vacuum freeze-drying technology is the best technology for preserving the nutrition of original ingredients in drying equipment. Pet snacks produced according to this method are more nutritious. In addition, baking and freeze-drying will remove the moisture of the raw materials of the food, so in the subsequent packaging process, vacuum packaging machines and modified atmosphere packaging machines can be used for packaging. Using cooking pots to produce processed ingredients is usually the method of producing canned fast food, and the produced canned products need to be sterilized at high temperatures to ensure food hygiene and safety.

Third, chewing gums, pet snacks for teeth grinding, the most important thing is to mix animal dander, plant dander, etc. into products such as gelatin. Now the kneading models on the market are more comprehensive, including vacuum type, screw extrusion type, rubber type kneader and so on. In the production process, the bite machine needs to go through four different temperature stages: heating and softening, constant temperature gelling, high temperature sterilization and cooling stability. At this stage, food machinery and equipment manufacturers can be equipped with different kneaders according to user needs: electric heating, steam heating, circulating hot oil heating, etc.

4. The key to eliminating bad breath biscuits is to use the friction between the biscuits and the teeth to remove the tooth stains in the pet's mouth, and then complete the purpose of cleaning teeth and removing bad breath. The current automatic biscuit production line on the market can complete the fully automated operations from feeding, molding, baking to oil injection and cooling, and the equipped biscuit forming machine adopts frequency conversion and joint control, which is conducive to the operation of changing the shape of the biscuit. In the baking stage, the use of low-temperature baking technology can simultaneously complete the sterilization and curing effects, and avoid the scorching phenomenon of the finished biscuit due to multiple high-temperature operations.

Pet staple food

In recent years, the domestic pet feed complete production line has made great progress. From small to large production lines, there are many models to choose from, and the processing technology is greatly improved.

1. The simple production line includes: crushing, mixing, puffing, drying, spraying and packaging process, 2-5 operators can complete the production requirements of the whole factory. The simple production line configuration can meet the production demand below 1t/h.

200kg/h is produced and processed by dry method, and wet production and processing is recommended for more than 200kg/h. With the same production formula and extruder model, wet production is 1.5-2 times higher than dry production.

2. The processing technology of the automatic production line includes feeding, cleaning, distribution of raw materials, storage, automatic weighing, crushing, mixing, puffing, drying, spraying, cooling, and packaging assembly line operation to meet the production requirements of 1t/h, which is indispensable. 5-10 operating workers complete the production requirements. Large-scale production lines are mostly constructed on-site according to the production needs of machinery and equipment. One can reduce the use of land area, and the other is to save part of the transportation equipment.

3. At this stage, the domestic production technology of extruder is divided into single-screw extruder and twin-screw extruder. Compared with twin-screw extruder, single-screw extruder has a very big advantage in investment, but the machine and equipment model of single-screw extruder There are problems, but in the production of products with low protein and fat content and high fat and protein content in pet feed, or changing the product formula (usually defined as high-grade pet food) single screw.

There are many small-volume single-screw extruders with no core technology, cruel competition, and cost issues. They may meet the needs of users, and they need to cooperate with wet production to meet the production needs of the final product. Small-volume single-screw working surface It is also rough, the machinery and equipment are not graded in the factory, the product is good

During the operation of the twin-screw extruder, due to the twin-screw supply, the supply is smoother and more stable. The supply side does not form a mass flow, and the products produced and processed are also particularly stable. Due to the characteristics of the machinery and equipment, the production and processing of pet food with high oil and protein content is The best choice, and the cleaning of the machine after the twin-screw extruder is stopped is particularly convenient. The screw has a self-cleaning function, which is more time and labor-intensive than the single-screw cleaning.

4. The drying process is also a key step in the production process. Energy consumption depends on the cost of the product. The high-quality drying oven has a particularly high heat utilization rate. Small-volume models mostly use multi-layer belt-type electric heating drying ovens. Compared with the large-scale feed drying box, the energy consumption is much higher, but the investment cost is much lower. The high-quality oven has low energy consumption, low consumption, and no leakage. When selecting machinery and equipment, the oven should be carefully observed. Small details can tell whether the manufacturer's processing technology can be meticulous, which will directly affect the use of machinery and equipment in the production process.

5. Spraying: as long as it meets the production process and mixing requirements.