Airstream 1000 Series Короткий довідник - Сторінка 10

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DRY AND COOL-

CONTINUOUS FLOW OPERATION

FOR DRYERS WITH TWO OR MORE FANS

1 . Look in your operators manual in the DRYER START UP section (CON-

TINUOUS FLOW METER ROLL SETTINGS-DRY & COOL). You will

see the settings for (Initial Moisture) (Moisture Removed) (Approx. Dry

Time) (1 Speed) (2 Speed Low) (2 Speed High) pick the line that has

your initial starting moisture. These are the settings we will be referring

to during this start up procedure.

2 . Make sure the UNLOAD switch is OFF.

3 . Make sure the MOISTURE CONTROL switch is OFF.

4 . Run the bottom fan(s) and heater(s) (to be used for cooling later) for

about 20 minutes. This will start the bottom drying so we can cool it

before we begin to discharge grain.

5 . Take the remaining number of burners to be started, divide that into the

total drying time required, working up, start each burner that many min-

utes apart. Run them about 10% longer than the (APPROX. DRYING

TIME) total required for the moisture you are trying to dry.

6 . Example: 10% removal would be about 60 minutes, 15% removal would

be about 85 minutes, and 20% removal would be about 110 minutes.

Add 10 minutes to insure that the grain is dry.

7 . After the required drying time turn the bottom heater (OFF) cool this

section for about 20 minutes. Set the upper plenum thermostats to the

decreed temperature (190°-230°F)

8 . Turn the UNLOAD to 1 SPEED and set the METER ROLL SPEED

(HIGH SPEED) pot. to the setting for 1 SPEED operation. Run time for

this is about 10% longer than the (APPROX. DRYING TIME) required

for the moisture you are trying to dry, as shown in the example #6.

above. This allows the moisture in the dryer to reach an even gradient

top to bottom without having any highs or lows in it. It will however,

over dry some of the corn a little.

9 . DO NOT TRY TO ADJUST THE DRYER FOR MOISTURE DURING

THIS PROCESS OR YOU WILL ESTABLISH HIGH AND LOW

SWINGS IN THE MOISTURE CONTROL. IT WILL TAKE SEVERAL

HOURS TO WORK ITSELF OUT.

10. After the run time in step 8 you are ready to set up the moisture control.

Now turn the MOISTURE CONTROL to the ON position. Set the tem-

perature to about 130 deg.

11. Turn the UNLOAD to 2 SPEED. Set the METERING ROLL SPEED,

LOW SPEED and HIGH SPEED pots. to the settings listed for them.

Let the dryer run on these settings as shown in the example #6 before

trying to adjust moisture or meter roll settings. These settings will not

START UP PROCEDURE

What temperature should I

dry at? See step number seven

in the Dry and Cool-Continuous

Flow Operation for dryers with

Two or More Fans section.