Analysis and trouble-shooting of common faults for feed pellet machine

1. No material enters the pellet chamber

Causes:

(1) . Bin arches or screw is blocked.

(2) . The feeder drive loses efficacy.

(3) . The conditioner is blocked.

Methods for trouble-shooting:

a. Break the arch or change bin structure, clean up the screw.

b. Replace the drive.

c. Clean up the conditioner.

 

2. Material can enter the pellet chamber normally, but pellet can’t be produced.

Causes:

(1) . Die holes are blocked. (a. Die is too thick; b, Formula is irrational)

(2) Moisture in material is too much or too little.

(3) Die-roller clearance is big.

(4) Deflector is damaged.

Methods for trouble-shooting:

a. (a. Thin the die holes; b. Change the formula)

b. Adjust the steam volume.

c. Adjust to a rational die-roller clearance.

d. Replace deflector.

 

3. The main machine has big noise and fierce vibration.

Causes:

(1) The gearbox or roller bearing in the pellet chamber wears seriously.

(2) Die and roller wear seriously.

(3) Roller clearance is too small.

(4) There is foreign materials in the pellet chamber.

Methods for trouble-shooting:

a. Replace bearings.

b. Replace die and rollers.

c. Adjust the roller clearance.

d. Clear off the foreign materials.