POSITIVE PLATE DRYING SYSTEM
The positive plates are dried by using Tunnel Dry Oven (TDO). The method adopted for it is described as follows.
1. Switch on the blower and chain.
2. Ignite the burners one by one.
3. According to the plate set its zone temperatures and chain gap.
4. Set the feeding speed so that there is 10 mm gap between each plate.
5. During operation keep the temperature as per standards.
6. On completion of TDO cycle, place the plates in the racks by maintaining pitch in between.
7. Note down the temperatures in check sheets.
8. The lubrication of the machine should also be under observation.
9. Clean the machine internally weekly.
1. Switch on the blower and chain.
2. Ignite the burners one by one.
3. According to the plate set its zone temperatures and chain gap.
4. Set the feeding speed so that there is 10 mm gap between each plate.
5. During operation keep the temperature as per standards.
6. On completion of TDO cycle, place the plates in the racks by maintaining pitch in between.
7. Note down the temperatures in check sheets.
8. The lubrication of the machine should also be under observation.
9. Clean the machine internally weekly.
NEGATIVE PLATE DRYING SYSTEM
The negative plates are dried by Vacuum Dry Oven (VDO). The method adopted for it is given below.
1. Before loading check for vacuum pump, steam and water flow.
2. Bring washed trolley and put plates on the table.
3. Arrange three rows of 4 x 4 into the tray and put sheet over it. Again arrange 4 x 4 three rows.
4. When both sides 15 x 15 plates arrangement is complete load the trays into VDO.
5. Bending of plate should be avoided during arrangement in tray.
6. Switch on the vacuum pump and also open water valve.
7. Note down readings of vacuum and steam after each 30 minutes.
8. When required vacuum is reached switch off the vacuum pump and water.
9. Open the valve and release the vacuum at steady pace with small opening of valve.
10. Put on gloves and remove trays from VDOs. Set them on the table.
1. Before loading check for vacuum pump, steam and water flow.
2. Bring washed trolley and put plates on the table.
3. Arrange three rows of 4 x 4 into the tray and put sheet over it. Again arrange 4 x 4 three rows.
4. When both sides 15 x 15 plates arrangement is complete load the trays into VDO.
5. Bending of plate should be avoided during arrangement in tray.
6. Switch on the vacuum pump and also open water valve.
7. Note down readings of vacuum and steam after each 30 minutes.
8. When required vacuum is reached switch off the vacuum pump and water.
9. Open the valve and release the vacuum at steady pace with small opening of valve.
10. Put on gloves and remove trays from VDOs. Set them on the table.