2026/04/11
If clogging is detected within the crushing chamber of a half -wet material crusher, the primary safety protocol is to immediately cut the power and shut down the machine. It is strictly forbidden to attempt a forced restart while material remains inside the chamber; maintenance and inspection must only be performed after the rotor has come to a complete standstill to prevent safety accidents. Open the equipment's access doors and unclogging ports to thoroughly remove any agglomerated wet material or entangled fibrous impurities from the chamber. Clear the discharge channel, extract any hard objects—such as iron scraps or stones—that may have jammed the rotor, and inspect the liner plates and rotor for accumulated material, scraping them clean.
Once the unclogging process is complete, close the machine doors and perform a no-load test run for 3 to 5 minutes. Only after confirming that the equipment is free of jamming, abnormal noises, and electrical current fluctuations should material feeding and production resume. The resumption of feeding must be gradual: begin with a low feed rate and slow speed while monitoring the discharge status and motor load. If the electrical current spikes, immediately reduce the feed volume; abrupt, full-load feeding is strictly prohibited.
To prevent recurring clogging, it is essential to strictly control the moisture content of raw materials. For organic fertilizer fermentation materials, moisture levels should be maintained between 40% and 50%. For wet or sticky raw materials, pre-conditioning—by blending with dry materials or by turning and aerating the piles to reduce moisture—is recommended. Implement standardized feeding protocols: install iron-removal devices to prevent hard objects from entering the machine, pre-crush oversized materials, and utilize variable-frequency feeders to ensure a uniform and steady supply of material.
Perform routine equipment maintenance diligently; promptly replace worn hammerheads and aged liner plates to maintain optimal crushing efficiency. For operations involving sticky materials, prioritize models without screens to prevent screen blinding (clogging). Additionally, regularly clean the ventilation and dust-removal systems to minimize moisture accumulation and material buildup within the chamber, thereby reducing the probability of clogging at the source.
