Processing technology of pet food production line

Pet food is food specially provided for pet small animals. It is a high-end animal food between human food and traditional livestock and poultry feed. Its function is mainly to provide the most basic life guarantee for various pets and what they need for production, development and health. Nutrients. It has the advantages of comprehensive nutrition, high digestion and absorption rate, scientific formula, quality standard, convenient feeding and use, and the prevention of certain diseases.

Pet food processing technology is a combination of feed production technology and food production technology. The production process of pet food is roughly divided into two types: one is the extrusion process with drying after extrusion and puffing as the main line, and the other is the baking process with extrusion baking and drying. The difference between semi-dry and semi-moist products and dry pet food is mainly in the moisture content. Dry pet food mainly relies on low moisture content to ensure the shelf life of the product, while semi-dry and semi-moist products rely on some salts, sugars and other substances to reduce Water activity, and some bacterial inhibitors are used to inhibit the growth and reproduction of molds, so as to ensure the shelf life of the product. Pet cans are obtained through a high temperature and high pressure sterilization process.

Except for canned food, other pet foods are closely related to the puffing process, and extrusion puffing technology is basically used in the processing of pet food. The pet food production line of Shandong Arrow Intelligent Equipment Co., Ltd. uses a twin-screw extruder to produce pet food. The pet food produced is novel in shape, unique in taste, rich in nutrition, and delicate in organization, suitable for different pets’ tastes. This production line can be used to produce cats. Dogs, birds, foxes and other pet foods are ideal choices for many manufacturers.

The pet food production line includes a batching system, an extrusion system, a spraying and cooling system, a drying system, and a packaging system. Pet food production equipment includes powder mixer, screw conveyor, twin-screw extruder, air conveyor, oven, coating line (seasoning cylinder), and cooler.

The factors that affect the extrusion effect of pet feed are as follows:

1. The influence of the model: wet or dry method, size, screw length to diameter ratio, screw structure, screw wear, sleeve groove shape, die diameter, material, die hole number, etc.

2. The influence of material characteristics: density, starch content, moisture, group fiber content, etc.

3. The influence of tempering: feeding amount, steam and water addition amount, steam quality, water temperature, etc.

4. The influence of operation and use: the matching of screw and sleeve, the replacement of formula, the insulation of sleeve, the cooling of screw, the control method of subsequent processing, etc.

The main production types of this pet food production line include pet staple food, dog chews, pet snacks, etc. The production output is 500 kg/h and below, 800-1200 kg/h, 1500-2500 kg/h, 2500-3500 kg/h, 4500-6000 kg/h.