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Correct operation of the granulator

Views: 16     Author: Site Editor     Publish Time: 2022-11-14      Origin: Site

When selecting the technological process, attention should also be paid to: ①At least two silos for pellets should be equipped to meet the needs of changing the formula; ②Before the feed enters the pellet mill, it must pass through a high-efficiency iron removal device to ensure that the pellet feed enters the pellet machine. . No iron impurities; ③The cooler should be placed directly behind the granulator. This can prevent the hot and humid particles from breaking; ④The crusher is best set under the cooler. The broken particles and granules are sent to the grading screen above the finished product warehouse through the elevator, which is conducive to the return of fine powder and sieve material and is convenient for entering the warehouse.

Turn on the device

Air compressor→fan→Shakron air cut-off device;

Grading screen→bucket elevator→horizontal conveyor→crusher→cooler→cooler cut off air;

Granulator main motor → quenching and tempering motor → feeder motor (minimum speed);

Start granulation first, then gradually open the steam valve while adjusting the speed of the feeder;

Further adjust the speed of the feeder to make the working current close to the rated value, and adjust the steam flow accordingly to make the temperature and humidity of the conditioned material suitable;

Adjust the tool to make the particle length suitable;

The particles at the beginning do not enter the cooler, and then enter the cooler after they are basically normal.

shutdown procedure

20-30 minutes before the shutdown, notify the boiler workers to stop the steam and use the remaining steam to produce the remaining pellets;

Observe the backflow and determine the downtime according to the backflow;

When there is no material in the granulation bin and buffer hopper, it can be closed, and the sequence is opposite to that of opening; 2.2.4 First close the steam valve, and then gradually close the feeder and conditioner;

Fill the ring die hole with oil from the observation door (stop for more than 24 hours);

Turn off the main motor

After shutting down the main engine, it should be ensured that the particles in the cooler have sufficient cooling time to avoid hot materials;

After the particles in the cooler are discharged, the crusher, bucket elevator and grading screen are gradually closed in sequence, delaying each other for about 2-5min;

Shut off hydraulic system (if equipped).

Three essentials must be mastered in the production process: first grasp, second look, third adjustment

One grab - grab the material from the observation port of the granulator door irregularly by hand,

Test for temperature and moisture. When just granulating, the material should be taken from the outlet of the granulator to observe the uniformity of particle length;

Second look - often observe the readings of thermometers and ammeters to understand the actual situation of granulation;

Three adjustments - press "one grasp and two views" to adjust the distance of the cutter, the feeding speed and the opening of the steam valve (adjust the amount of steam).

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