Sterlco SGBD Series Batch Gravimetric Blenders - Manual (Page 59)

Bulletin Number Chapter 4: Operation 59 of 101
Feeder Clean Out
Any feeder in the Slide Gate/Auger blending system can be emptied and refilled with a
different material. To do a feeder clean out, the operator has to press the “Clean Out” icon
key from the recipe screen (the first screen that appears on power up).
This screen will allow you to Open or Close the Feeder, Weigh Hopper, Mixer Knife Gate,
Empty the Entire Blender, Start or Stop the Mixer Motor, Test the Alarm Output, Find out the
Mixer Proximity Status and monitor the Current Hopper Weight.
Figure 47: Typical Manual Control Operator Screen
The dump valve opens as soon as the “Press to Open Feeder” key is pressed. This easy feeder
clean out option also serves as a means for emptying a batch that is held in the weigh hopper
if the “Press to Open Weigh Hopper” key is pressed when the blender is stopped. To
open/close feeder numbers 2, 3, 4, 5 & 6 press the number next to “Press to Open Feeder” to
select the feeder you desire to empty and the “Press to Close Feeder” key to close the dump
valve. Touch the “Done” key to return to the recipe menu. After entering a recipe, the
operator will restart the blending system, putting it back in normal operation.
Once the operator initiates the run mode of operation, the blending system controller will
begin monitoring the mixer high-level switch. Nothing will happen until the mixer high-level
switch is uncovered. This tells the controller that the mixing chamber is capable of holding
another batch of material.
Once the mixer high-level switch is uncovered, and the weigh hopper has dumped, the system
will meter the ingredients from the supply hoppers, through the metering units, into the weigh
hopper. Each component will be metered individually to allow accurate weighing of the
material.
Each component is metered in the order specified by the “Metering Order” setup. See the
Installation & Setup chapter for further details.
Once the final ingredient specified in the recipe has been metered into the weigh hopper, the
controller will take a final weight reading of the weigh hopper. This will start the “Dump
Note: Before starting Slide Gate/Auger blending systems, each ingredient
hopper in the current recipe must contain material! Virgin material
must be loaded in hopper #1 and hopper #3 should only be used for
regrind!!
Empty Entire
Blender
Warning Message
Current Hopper
Weight
Go back to Setup
Directory
Test Alarm
Output
Open or Close
Weigh Hopper
Start or Stop Mixer
Motor
Open or Close
Mixer Knife Gate
Low Level Prox
Status
Open or Close
Feeder