Possible faults of screw oil press and solutions.

Reason

Solution

① Feeding oil crop before heating the press cage.

① Start to feed until cakes come out normally.

② The cake for warming up the machine is too dry.

② Increase the cake's moisture.

③ The cake is too thin and pressure in the chest is too high.

③ Turn the adjusting bolt clock--wise to enlarge the cake's thickness.

④ Oil crop have shells or hard sundries mixed into the oil crop.

④ Husk the oil crop. Screen and clean the oil crop.

Reason

Solution

① The work-sections of squeeze loops and squeeze spirals are coarse.

① Gradually squeeze the cake (except tea seed) mixed with 10% water until squeeze loops and squeeze spirals' working sections become smooth.

② Oil crop in the press cage mixed with oil.

② Add a small quantity of residue cake into oil crop to squeeze together. Slowly add the feeding quantity. Can't suddenly feed too much.

③ Gaps between the squeeze bars and oil grooves on the squeeze loops are blocked.

③ Dismantle the squeeze bars and squeeze loops. Put them into hot water for 10 minutes and then clean them with wire brush.

④ Oil crop has high oil content, need more oil channels to discharge the oil.

④ Change to press bars and loops with deeper oil grooves.

⑤ Oil crop are too dry when press in hot way.

⑤ Ensure the right moisture of oil plants.

Reason

Solution

① Moisture too low

① Increase the moisture. Shorten frying time.

② Moisture too high

② Reduce the moisture. Lengthen the frying time.

Reason

Solution

① Oil crop with low oil content or many impurities

① Screen and clean the oil crop.

② Temperature and moisture are abnormal.

② Adjust the frying temperature and moisture.

③ Low temperature in squeeze chest.

③ Follow this instruction to increase the temperature of squeeze chest by warm up the machine by cakes.

④ Spare parts frayed.

④ Change the spare parts.