Feeder Failure

Fault phenomenon: The feeder is stuck and cannot move forward or backward

Cause Analysis:

1. The feeder advances beyond the limit and cannot be retracted: When the feeder advances beyond the set limit, the rear garbage baffle may fall and hold the feeder, preventing it from retracting. This usually happens when the two feeder carts are not running synchronously.

2. The feeder sliding platform casting is cracked or warped, causing the feeder to be stuck: If the front and rear castings of the feeder sliding platform are cracked or warped, it may cause the feeder to only complete half of the stroke, which is a relatively easy problem to identify.

3. The partition wall castings on both sides of the feeder are broken or loose: Depending on the specific location of the partition wall casting loose, the feeder may be stuck at a specific location. In this case, the integrity and fixation of the partition wall casting need to be checked.

4. Improper adjustment of the gap between the feeder and the partition wall after maintenance: During the maintenance process, if the gap between the feeder and the partition walls on both sides is not adjusted correctly, the gap may be too small. During operation, if the garbage burns on the feeder cart, the feeder will be stuck by the partition wall due to thermal expansion and cannot move forward or backward.

5. The trolley gets stuck due to excessive sediment content in the garbage: When there is a lot of sediment in the garbage, especially when handling landfill garbage, a lot of sediment may enter the gap between the feed trolley and the partition wall. As the sediment accumulates, the feeder may get stuck.

Treatment Method:

Step 1: Adjust the trash baffle to solve the problem of feeder backward obstruction

First, operate the feeder to make it move forward and release the trash baffle. Then, lift the baffle upward to ensure that it does not block the feeder's backward path.

Step 2: Deal with the problem of feeder bottom plate lifting

As a temporary solution, the strokes of the two feeder trolleys of the other feeder can be adjusted to be consistent so that the sequential control operation can be carried out smoothly, which has less impact on the overall operation.

Step 3: Deal with feeder partition wall problems

Feeder partition wall problems are usually not handled during operation. If the jamming position is not good, it may cause a significant reduction in the stroke of the feeder trolley, thereby affecting the operation. In this case, manual intervention in feeding may be required. To completely solve this problem, it is usually necessary to stop the furnace for processing.

Step 4: Solve the problem of feeder jamming caused by temperature changes

For jamming caused by temperature changes that cause the gap between the feeder and the partition walls on both sides to be too small, the temperature of the feeder platform can be reduced by adjusting the combustion process. Usually, this can restore the feeder to normal operation.

Step 5: Deal with the problem of the feeder cart being stuck due to high sediment content in the garbage

When the feeder cart is stuck due to high sediment content in the garbage, you can temporarily stop feeding the garbage into the landfill or stale garbage. At the same time, appropriately increase the feeder oil pressure (under normal circumstances, the feeder push oil pressure is set to 12MPa), so that the feeder can gradually resume normal operation.