What is the important role of wheat peeling machine in flour processing
The peeling machine is the main equipment of the peeling and flour milling system. According to the principle of grinding and friction, the use of peeling machine work inside the diamond roll hard and sharp, high-speed movement of the sand, and strong friction between iron bar surface and wheat grain and wheat grain and wheat grain, first fast grinding of the wheat cortex, the cortex is broken off. When the friction force is larger than the structural strength of the wheat cortex and the binding force between the cortex and the endosperm, the cortex, and the endosperm surface are relatively sliding, and the cortex is stretched and broken until it is wiped off.
As the figure shown, pre-water of wheat, from the top of the machine inlet to enter the upper studio. The upper part of the working chamber is the grinding part, the wheat movement between a group of rotating grinding wheel and the circumferential-long hole sieve plate, the grinding wheel is operated at a lower peeling pressure to crush the grain and effectively remove the wheat grain without destroying the wheat grain. The removed wheat flour is discharged through the sieve.
The lower part is the friction part. After grinding the peeling of wheat in a spiral movement, through the upper-pressure discharge door discharge, into the lower studio. Rely on friction, polishing the remaining skin on the wheat, the screw propeller to push the wheat up to the second sieve area separation of wheat, wheat grain through the middle of the pressure discharge door to complete the entire peeling work. After peeling the wheat is ready for the last breath processing.
The top of the blast system is conducive to air flow and increase the grain in the studio roll, to improve the uniformity of peeling; The bottom suction system causes the machine to generate negative pressure. Adjusting the pressure difference in each studio helps to cool the wheat grain and pass through the sieve into the lower dust collector and quickly evaporate the moisture on the surface of the wheat.
The structure of peeling machine
The peeling machine is mainly composed of transmission, feeding port, upper working room, lower working room, spiral propeller, nesting door, top blast system and bottom suction system and base. The main motor is bolted to the motor platform and the main drive shaft is driven by a set of V-belts. The motor speed can be adjusted to meet different operating conditions. The body is mounted on a rigid base, including the main drive. The drum-type roller bearings on the base support the spindle and extend upward through the two working chambers. All drive parts are mounted on the spindle. Between the two studs are mounted with a larger centripetal thrust bearing to stabilize the column shaft.
An elongated steel sieve plate fixed to the grinding wheel on the main drive shaft and the outer frame constitutes an upper working chamber. The grinding wheel consists of a number of grinding wheels and the top is a feed screw. The outer frame is equipped with a resistance plate and a resistance plate adjusting device, and the gap between the resistance plate and the sand roller is adjusted to change the peeling pressure of the working chamber.
The lower working chamber is composed of a friction roller and a sieve frame fixed on the same vertical spindle. The lower part of the iron bar is a spiral propeller, and the material is propelled from bottom to top. Discharge door is equipped with pressure regulating device, manual or automatic adjustment of the discharge gate on the pressure mound, can adjust the working pressure inside the machine.
The use of peeling machine
Peeling machine can be used to process wheat, barley, and rye, etc., can effectively remove the grain cortex.
The peeling machine is set in the grain pre-water, the two peeling treatment, the resistance plate set and the discharge gate pressure mound set all determine the strength of peeling.
The resistance plate is set to "rough off", which is done before the machine is delivered. In addition to the occasional adjustment of the compensation wear, there is no need to change the machine work. Discharge door pressure mound on the peeling plays a "fine off" control role in the processing of different varieties of wheat, should be subject to different adjustments at any time. The resistance plate causes turbulence in the peeling chamber of the grinding area while reducing the peeling strength. Adjust the pressure of the upper discharge door to change the peeling strength. Pressure adjustment can also automatically set the pre-set peeling strength, automatic pressure adjustment system can automatically adjust the discharge gate pressure so that it is maintained at the default state. Changing the gripping of the mound on the gating door increases or decreases the pressure in the peeling chamber.
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