Title

15 Dry Polymer Pumps Shutdown

This SOP is only necessary if the polymer pumps are being taken out of service. 

It should be noted that the Liquid Polymer system is the primary system.  The Dry Polymer is used for back up purposes and for the DAFT system only.

The Polymer Feed Pumps are typically run under automatic control from the Belt Filter Press local control panel. One pump is in operation while the other is on standby. Polymer Pump operation is rotated each month at the same as the Belt Filter Press rotation. Under normal conditions, the polymer feed pumps are taken offline at the end of the swing shift when the dewatering system is taken offline. The polymer pumps automatically start when the dewatering system is started each day.

SOP Identification Number
SOP Identification Number:
1507_Dry Polymer Pumps Shutdown
Health & Safety Warnings
Health & Safety Warnings:

Watch for open tanks and high elevations. If working on or near equipment, watch for rotating parts. 

Cautions
Cautions:
  • Loss of polymer will impact flocculation of dewatering process.   
Personnel Qualifications
Personnel Qualifications:


Operator I, knowledge of dewatering process and equipment controls.

Quality Control/Quality Assurance Activities for the Procedure
Quality Control/Quality Assurance Activities for the Procedure:
  • Record activity to log book.
Procedure
Procedure:

The Polymer Feed Pumps are typically run under automatic control from the Belt Filter Press local control panel.  One pump is in operation while the other is on standby.  Polymer Pump operation is rotated each month at the same as the Belt Filter Press rotation. Under normal conditions, the polymer feed pumps are taken offline at the end of the swing shift when the dewatering system is taken offline.  The polymer pumps automatically start when the dewatering system is started each day.

This SOP is only necessary if the polymer pumps are being taken out of service.

If the Dry Polymer System is offline, the backup Liquid Polymer System must be brought on line for dewatering.  See  the Liquid Polymer Start Up SOP for instructions.

1.     Stop Polymer Pumps {tag nos. 1507PMP/MTR/VFD5300 & 1505PMP/MTR/VFD5400}.

This SOP can be skipped if the Belt Press Filter has been running normally and is under AUTO control. This SOP must be performed if the polymer pumps are to be taken out of service.

a.     Locate the Dry Polymer Local Control Panel {tag no. 1507LCP5722}. 

b.     Turn the HOA switches {tag nos. 1507HS5300A & 1507HS5400A} to the OFF position

c.     Flip the breaker switch {tag no. 1507SWI5722} to OFF.

Data & Records Management, Calculations, Forms, Reports
Data & Records Management, Calculations, Forms, Reports:
  • Update log book.
  • Update maintenance records (if applicable).
  • Report any maintenance or attention that is required.
Equipment
Equipment:

EQUIPMENT NAME

TAG NUMBER

Dry Polymer Pump No. 1

1507PMP5300

Dry Polymer Pump No. 1 Motor

1507MTR5300

Dry Polymer Pump No. 1 VFD

1507VFD5300

Dry Polymer Pump No. 1 HOA Switch

1507HS5300A

Dry Polymer Pump No. 2

1507PMP5400

Dry Polymer Pump No. 2 Motor

1507MTR5400

Dry Polymer Pump No. 2 VFD

1507VFD5400

Dry Polymer Pump No. 2 HOA Switch

1507HS5400A

Dry Polymer Local Control Panel

1507LCP5722

Dry Polymer Breaker Switch

1507SWI5722

ID
Maintenance Connect