1. low flour extraction Select good quality wheat; collect the kernels; decrease moisture; increase moisture; guarantee accuracy of the roller; guarantee tempering time; regulate the brush; adjust clearance.

2. grits mixed in flour Clean the sieve in time, adjust the destoner, check balance of the sieve box, regulate clearance of wheat scourer; control flow.

3. Fineness not up to standard Arrange wheats, prolong tempering time; adjust the roller; increase flow; adjust the clearance; equip required sieve cloth.

4. Color difference of flour Control quality; Adjust moisture of the wheats; Adjust the rollers of the corn flur mill; Adjust clearance and pressure of the spring.

5. Low quality gluten Control quality; Control flour rate, draw the roller of the corn flour mill again.

6. Unqualified moisture in flour Adjust moisture;Control balance.

7. More magnetic metal contained in the flour use magnet to strengthen purifying; Remove rust; Pay attention to surface of the roller and its operation.

8. Too much flour in bran guarantee tempering time.

9. Block of storage bin Control the moisture at 14.5% and guarantee tempering time.