I. Usage Instructions

1. Pre-Startup Preparation

Examine the Equipment: Check if all parts like grinding rollers, grinding plates, and sieves are in good condition, without looseness, wear, or damage. Make sure the bolts and nuts at the connecting parts are tight, and the drive belts are properly tensioned with no sign of breaking.

Clear Material Passages: Remove any foreign matters (such as stones, metal pieces) from the feed inlet, grinding chamber, and discharge outlet to prevent the equipment from being damaged or the materials from being contaminated after startup.

Adjust Parameters: According to the material properties (hardness, humidity, particle size) and the required powder fineness, adjust the grinding gaps (e.g., the gap between grinding rollers or grinding plates), feeding speed, and the rotation speed of the classifier (for equipment with a classification function). For instance, when grinding hard materials, the gap can be appropriately widened to reduce wear; if fine powder is needed, narrow the gap and increase the rotation speed of the classifier.

Check Auxiliary Systems: If the equipment is equipped with a lubrication system, ensure there is enough lubricating oil and the oil circuit is unobstructed; for equipment with a dust removal system, check if the fan and filter bag are in normal condition; for materials that need drying, start the drying device in advance for preheating.

2. Startup Procedure

Start in Order: Generally, follow the principle of "starting auxiliary equipment first, then the main machine". For example, start the discharge conveying equipment, dust removal system, and classifier first, then the main machine; start the feeding device only after the main machine runs stably.

Feed Gradually: Initially, feed at a slow speed, observe the operation status of the equipment (such as sound, vibration, current), and gradually increase the feeding amount after confirming there are no abnormalities. Avoid sudden overload which may cause the equipment to get stuck or damaged.

Monitor Operating Parameters: After startup, keep an eye on the data of ammeters, voltmeters, thermometers, etc., in real time to ensure the equipment operates within the rated load. Meanwhile, pay attention to the grinding effect of the materials. If there are problems like uneven particle size or excessive impurities, stop the machine and adjust it in time.

3. Shutdown Steps

Stop Feeding First: Turn off the main machine only when the grinding chamber is almost empty of materials, to prevent residual materials from caking or causing overload during the next startup.

Shut Down in Order: After the main machine stops running, turn off the auxiliary devices (classifier, dust removal system, conveyor) in reverse order to ensure the entire system shuts down completely.

Clean the Equipment: Timely clean the residual materials from the feed inlet, grinding chamber, sieve, and discharge outlet to prevent them from caking due to moisture or corroding the equipment. For grinding mills used in food processing, clean and disinfect them thoroughly to avoid bacterial growth.

II. Precautions

Prioritize Safety: Operators must wear protective equipment (gloves, goggles, dust masks) and avoid standing near rotating parts during operation. Never open the grinding chamber or touch moving components when the machine is running.

Prevent Overloading: Do not exceed the rated feeding amount. If the machine stalls due to overloading, shut it down immediately, clear the residual materials, and restart it after troubleshooting.

Carry Out Regular Maintenance: Inspect and replace worn parts (such as grinding rollers, sieves) regularly to ensure grinding efficiency. Lubricate the moving parts according to the manufacturer's schedule.

Handle Special Materials Carefully: For flammable, explosive, or corrosive materials, use specialized grinding mills designed for them and follow strict safety rules to prevent accidents.

Keep the Worksite Tidy: Maintain a clean environment around the equipment to prevent debris from entering the machine and to facilitate emergency handling.

Adhering to these usage methods and precautions can ensure the grinding mill operates efficiently and safely, and also extend its service life.