Why should the dies and rollers gap be adjusted correctly

(The correct adjustment of ring die and roller gap is an important condition to achieve the maximum production capacity and prolong the service life, the most suitable gap of the roll die is 0.1-0.3 mm, and the judgment method is no material state The phenomenon of not turning when turning or using a feeler gauge)

A. Too tight gap between ring die and rollers will cause:

1) Ring die calendering;

2) Excessive wear of the pressing rollers;

3) In severe cases, the ring die will be damaged;

4) Feed pellet machine vibration intensified.

B. Excessive gap will cause:

1) The rollers slips to make no material;

2) The feeding layer is too thick, and the pellet machine is blocked frequently;

3) The efficiency of the granulator is reduced (the granulator can easily reach full load, but the feeding cannot rise).

Precautions when starting the ring die 

1) Remove the condensed water in the steam pipeline to prevent the water mass from entering the mixing chamber.

2) Before pelleting, make sure that the feeder is adjusted in the lowest range to avoid sudden increase of feed into the pelleting room.

3) Do not add steam before starting granulation (to ensure that the dry material can be injected into the die hole), then slowly increase the feeding, and add steam when the current reaches full load (note that when the steam is just added, the current will not drop immediately, take a few seconds).

4) After the ring die is started, it should run for 2 hours under the condition of 60%-70% of full load and then increase to full load, so as to make the die hole highly polished.

5) The new ring die must be equipped with a new pressure roller, so that the die roller can be better run-in. 6. After the ring die is started, the adjustment range of feeding amount and steam amount should be small.