Corn Puffed Extruder-manufacture,factory,supplier from China

There is only one screw in the barrel of the single screw extruder, it is by the friction of the screw and the barrel of the material to transport materials and form a certain pressure. In general, the friction coefficient between the material and the barrel is greater than that between the material and the screw. Otherwise, the material will be wrapped in the screw together to rotate and not play the role of forward propulsion.Screw is divided into three sections: feeding (feeding) conveying section, compression melting section, metering homogenization section.

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.

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.

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.

Extruder belongs to a kind of equipment for processing puffed food. It is a kind of equipment for processing puffed food, such as processing rice, corn, soybean, wheat, etc., in daily life.

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.

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.

Series double screw extruder introduction:1, mainly by the feeding system, extrusion system, rotary cutting system, heating system, lubrication system, control system.2, extruder feeding system, main drive system, rotary cutting system all adopt frequency control, strong power, smooth operation, power saving.3, automatic lubrication, forced cooling, to ensure the safe operation of the extruder and prolong the life.4, screw alloy material, through special processing, high strength, wear resistance, increase the service life.5, according to different products, with different structure and length