The extruder is mainly composed of a feeder, a different diameter cylinder conditioner, an extruding device, simple pipeline system and electric control, see following picture.
The feeder is mainly used for feeding the material to conditioner in a certain amount, the equipped motor is of the frequency conversion speed control motor, and the rotation speed can be adjusted based on actual production situation.
The feeder of the extruding machinery is mainly composed of a convertor motor, a feeding bin, an anti-bridge device, a screw conveying device and a discharging out let, see following picture. The working procedure is: material in the feeding bin is pulled forward along the axial of the screw conveying device by the convertor motor, and then drop into the conditioner through the discharging outlet. At the same time, the anti-bridge shaft drove by the chain is rotating in the feeding bin to prevent generating blockage.
The conditioner on the extruding machine is made of complete stainless steel and mainly composed of a speed reducer motor, a feeding inlet, a water inlet, a steam inlet, a stirring shaft, a conditioning cylinder and a discharging outlet. Main features are shown as follows: two agitator shafts with different diameters and rotation speeds agitate the material through back cross movement, the agitation efficiency is good at that the material, steam, water or other liquid can be sufficiently mixed; and a housing with large volume is used so that the material can be kept long enough under a certain temperature and moisture content in the conditioner on the purpose for ripening.
Advantages of conditioning:
a. The production capacity can be improved.
The partially cooking material with steam needs a very less mechanical energy for heating products to the maximum temperature, therefore, as for a device with designated power, and the production capacity is greater than dry feed extruder with the same power.
b. The forming capability is greater.
The use of steam and water can make the water content of material be improved, and this will greatly improve the forming performance and final quality of the products.
c. The abrasion of extruding parts is reduced.
The cooked material has the corresponding temperature and ripeness, therefore, too much higher pressure and abrasion in the machine chamber are not required, and also the water can be used for lubricating, these can greatly reduce abrasion, so that service life of machine chamber and screw can be increased.
d. The gelatinization of product can be improved.
The steam cooking can improve gelatinization of produce, make it more taste and easier for absorption.
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