Rejected material from the coal pulverizing mill is discharged to the mill storage hopper. A relatively small unit, it is not intended for long periods of collection due to space limitations at the pulverizer. A seal on the hopper permits the unit to operate at the pressure of the pulverizer. After material is collected in the hopper, it is removed with a JETPULSION® pump and conveyed in a pipeline to either a storage/transfer tank, or to tie into the bottom ash system.
UCC hoppers are designed to meet NFPA requirements.
- Internal sizing grids trap large material chunks, preventing damage to the pump and allow for easy removal through the access door
- Separate mill rejects systems allow for mill rejects to be conveyed intermittently, saving operating costs, and without interfering with bottom ash hopper operation