Knowledge

I. Maintenance Triggered by Abnormal Discharge Conditions 1. If the underflow discharge pattern shifts from a normal umbrella shape to a column, rope, or intermittent chunk shape,

I. Repairing Clogging Issues 1. Feed inlet/underflow outlet clogging: Close the feed valve of the malfunctioning cyclone, remove the clogged component, manually clear out starch cl

I. Blockage-related faults 1. Underflow outlet blockage: Excessively high starch slurry concentration or the presence of large impurities can prevent the underflow from discharging

I. Essential Pre-shift Checks 1. Feed System: Check feed pipes and valves for obstructions, damage, or leaks; clear any caked material from the pipes; ensure feed pressure remains

1. Slight/Single Blockage (Early Stages): Only minor parameter fluctuations occur: feed pressure is slightly higher than normal, pressure differential increases slightly, and proce

1. Depressurize before operation; pressurized operation is strictly prohibited. Before flushing, completely close the feed valve, empty all residual starch slurry from the hydrocyc

1. Upgrade feed pretreatment to prevent blockages at the source. This is the most crucial measure to prevent re-clogging: Fixed two-stage pre-treatment: Before entering the hydrocy

1. Slight/Single-tube blockage: This only causes a slight decrease in single-stage separation efficiency, manifested as a small reduction in starch recovery rate (generally 2%-5%)

1. Minor Blockage: High-Pressure Water Backflushing (Can be resolved in as little as 10 minutes) Suitable for minor blockage in a single hydrocyclone tube and slight pressure abnor

Step 1: Check the pressure difference (most intuitive): With the feed opening unchanged, if the feed pressure rises abnormally and the inlet/outlet pressure difference increases by

1. Replacement of Vulnerable Parts (Most Common Basic Repair Method) Applicable Scenarios: Suitable for cases where only the hydrocyclone tube is worn or aged, or where seals/gaske

1. Replacement of Aging Hydrocyclone Tubes Only (Most Common Minor Repair) This is a routine maintenance repair, taking only 1-3 days in total. It only requires disassembling the h