Corn Puffed Extruder-manufacture,factory,supplier from China

Puffed food appeared in the market in the 1960s. Later, it quickly became popular in various countries because of its unique taste, simple eating and various patterns. It has long occupied the most frequently purchased snack types with chocolate, wafers and other foods.However, the long-term sales advertisements and puffed food have left us with a stereotyped image. Recently, many consumers said that when they saw the product category as "oil-containing puffed food", they were very worried about whether it was an unhealthy snack.

Screw extruder is mainly used in the production of starch extruded food, protein extruded food and extruded feed in the food industry, and can also be used as a special chemical or biochemical reactor.Starch puffed foodThe starch in the grain will gelatinize (αize) under the high temperature and pressure of the extruder. The results showed that the degree of starch αization was more than 98% and the crude fat decreased by 60% or even disappeared after the puffed corn flour. Water solubility increased by more than 40%. Therefore, extruder can replace roller dryer to produce gelatinized starch.

Frozen vegetables, as the name suggests, is to wash, cut, sterilize, dehydrate and pretreat fresh vegetables such as peppers, coriander, broccoli, carrots, radishes, corn, cucumbers, etc. The freezing of the vegetables reduces the central temperature of the vegetables to a level below minus 15 degrees.

Directly puffed food is generally required to be dried after extrusion processing. The moisture content of the dough in the extruder is 15%~20%. The product is then dried to reduce the moisture content to 2% to 3% to create the environment needed for a crunchy texture and stable shelf life. Due to the low density of the product, the drying time is usually very short, so it should be carried out in a warm warehouse.Coatings to produce direct-expanded products Extruded and dried products are finally sprayed with oils and seasonings.

Working Principle of Twin Screw ExtrusionAfter a certain amount of pulverization, the material with a certain water content is fed into the extruder cavity, so that the material will undergo mixing, shearing, A series of complex continuous processes such as melting, curing and sterilization. Because there is a certain air pressure difference inside and outside the barrel, the moment the material is extruded, the external pressure it is subjected to is reduced to normal pressure, so that the material is instantly puffed.

The puffed foods such as potato chips, french fries, etc. that we usually see are produced by the puffed food extruder. After a series of operation procedures, the delicious food is presented in front of us.

When using a twin-screw extruder, the twin-screw extruder needs to install the device correctly, so that it can save energy and time during production.The twin-screw extruder is fully automated from batching, extrusion, puffing, molding, core sandwiching, cutting, spraying to finished products at one time. The production line has the characteristics of many optional models, flexible equipment configuration, wide range of raw materials, many types of products, and simple operation.

Twin screw extruder is developed on the basis of single screw extruder. Two screws are placed side by side in the barrel of the twin screw extruder. According to the meshing degree of the two screws can be divided into mutual meshing type and non-meshing type. According to the rotation direction of the two screw shafts, it can be divided into reverse rotation type and co-rotation type.(1) meshing twin screw: Because the meshing gap of the meshing screw is very small, the material has the ability of forced conveying, not easy to produce backflow, leakage phenomenon.

The extruder has the functions of compression, mixing, kneading, melting, puffing and molding. The cavity of the extruder can be divided into 3-5 zones. Each zone can be heated by steam or electricity, or by extrusion friction, so as to achieve the purpose of cooking the material. Under the action of high temperature and high pressure in the cavity, the starch Gelatinization, protein denaturation. When the material passes through each zone of the extruder cavity, soluble flavor substances and pigments can be injected into the material through the cavity under high pressure.

1. Before operating the corn equipment bulking machine, remove the head, movement, lead screw and other parts, clean them up, dry them and then install them.2. Idling for 1 to 2 minutes first when operating, put the raw materials into the feed mouth, not too fast, when the ring groove of the spiral shaft head is filled, stop feeding, friction preheating. Wait until the nose temperature rises and the pressure inside the cabin builds up before feeding.3. Feed should be continuous and uniform, material must be dry, must pay attention to.4.