Pellet machine FAQ and solution (Part 1)

Pellet machine FAQ

(1) What is the reason for the abnormal vibration of the particle machine, and what are the main factors to consider?

A:

1. Raw material delivery is not stable, the feeding speed should be adjusted;

2. Deflection scraper wear caused by uneven feeding, should be replaced with a new scraper;

3. Pellet machine ring die and press roller with new and old, the best new ring die with new press roller;

4. The gap between the ring die and the press roll is not coordinated with the material produced, and the press roll gap is adjusted;

5. The reason of the press roller, the old and new press roller used together or the press roller wear and damage;

6. The formula used is difficult to granulate, adjust the formula appropriately;

7. Steam supply is insufficient or pressure changes, check steam pipeline and system pressure and decompression

Whether the valve is normal;

8. There are debris in the granulation bin, remove the debris in the granulation bin;

9. The main shaft bearing is worn or damaged and needs to be replaced.

(2) When the pellet machine is refueling, the operation method of the grease block and the easy failure, how to solve it

Decision?

Answer: When refueling the pellet machine, the gas must be turned off before moving the grease block.

First: When moving the grease block, it is inevitable to forget to turn off the gas, if you can't move at this time, please

Do not move, first turn off the air source, then move;

Second; Sometimes after the death of gas, or can not move, it is necessary to put the grease in the middle of the six

Remove the corner bolts, separate the grease block and you'll see two O-rings in the middle, and then you'll put the O

Put the ring and then install it, you can;

Third: When the grease block is not facing the oil circuit, the grease block is connected due to high air pressure, only

Remove the hex bolt in the middle of the grease block.

(3) What is the instability of particle electromechanical flow?

A: 1. Improper adjustment of the ring die gap of the press roller;

2. The dividing knife is seriously worn and the dividing material is uneven;

3. The semi-finished product or the return material contains too coarse powder particles (the grading screen is damaged);

4. Uneven mixing of raw materials and added liquid and steam;

5. The tightness of the transmission belt is different.

(4) How should the pellet machine start up?

A: 1. Check whether the power supply is normal;

2. Check whether the safety pin is broken;

3. Check whether the travel switch is in place;

4. Check whether the pellet machine door is closed properly.

(5) For the uneven surface of the particle material, what is the improvement?

A: 1, properly control the thickness of the powdered feed, so that all raw materials can be conditioned

Fully softened;

2, for raw materials containing more fiber, because it is easy to include steam bubbles, so do not

Too much steam is added to this recipe.

(6) What are the reasons why the particles of the pellet machine are not tight enough and the powder is more? How to solve

Decision?

A: Control the pelletizing yield, increase the compression ratio of the ring mold, and adjust the formula appropriately if necessary.

(7) The reasons and solutions for inconsistent color of particles?

A: Control the amount of water added to the mixture and the mixing uniformity. Control the quality of the ring die such as the finish of the hole;

Control the fineness and uniformity of the material before granulation.

(8) What is the cause of bending and showing many cracks on one side of the particle material?

A: This phenomenon is usually generated when the particles leave the ring mold, when the position of the cutter is adjusted away from the ring mold

When the surface is far away and the knife edge is blunt, the particles are broken or torn by the cutting knife when they are extruded from the die hole

If it is not cut off, some particles are bent to one side and many cracks appear on the other side.

Improvement measures:

Increasing the compression force of the ring die on the feed, that is, increasing the compression ratio of the ring die, thus increasing the particles

Density and hardness of the material; Crush feed ingredients finer if molasses or fat is added

Fat, the distribution uniformity of molasses or fat should be improved and the amount of its addition should be controlled to improve the particles

Compactness of the material to prevent the feed from being soft; Adjust the distance of the cutter from the surface of the ring die or replace it

A sharp cutting blade; The use of adhesive granulation additives to improve the internal bonding force of particles.

(9) How to deal with the serious blockage of the die hole?

A: 1, after soaking in oil, slowly press in with compound feed first, observe the discharge situation;

2. Feed whole corn or fractured corn slowly to observe the discharge situation;

3. Whole corn, oil and fine sand are mixed and fed to observe the discharge situation;

4. Use an electric drill to drill out the filler (improper operation will damage the die hole).

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