The operation method of the horizontal piston pushing centrifuge can be divided into the following key steps:
1、 Preparation before startup
1. Check whether the equipment foundation bolts are tightened and whether the lubrication system oil level meets the standard (specified type of lubricating oil should be used).
2. Confirm that the clearance between the drum and the pushing piston meets the standard (usually 0.5-1mm) to avoid jamming during operation.
3. Clean up residual materials in the drum to prevent excessive vibration caused by imbalance during startup.
2、 Parameter Setting and Startup
1. Set the speed (usually 800-1200rpm), pushing frequency (adjusted according to material characteristics), and running time through the control cabinet.
2. Start the lubrication system oil pump, and after the oil pressure stabilizes, jog the motor to confirm that the direction of rotation is consistent with the label.
3. Gradually increase the speed to the rated speed and run without load for 5 minutes to monitor the vibration value (should be ≤ 0.1mm).
3、 Feed and operation monitoring
1. Slowly open the feeding valve, with an initial feeding amount of 30% of the normal value, and observe the current fluctuation (not exceeding 10% of the rated value).
2. Record the bearing temperature (normal range ≤ 70 ℃) and the stroke of the pushing piston every 30 minutes (abnormal conditions require shutdown inspection).
3. If abnormal vibration or noise occurs, immediately cut off the feed and execute the emergency shutdown procedure.
4、 Shutdown and maintenance
1. First, close the feed valve and inject cleaning solution to rinse the drum for 10-15 minutes (to prevent material solidification).
2. Reduce the speed to below 200rpm before cutting off the power, and prohibit high-speed emergency stop.
3. Disassemble the filter screen to check for wear, and replace the deformed or damaged push piston seal ring.
5、 Safety precautions
1. It is strictly prohibited to start the equipment before closing the hood to prevent material splashing.
2. Excessive pushing frequency can cause the filter cake to be too thin, while insufficient pushing frequency may clog the drum, requiring dynamic adjustment based on the solid content of the material.
3. During winter shutdown, it is necessary to drain the cooling water to prevent pipeline freezing and cracking.
This equipment is suitable for continuous separation operations in industries such as chemical and food, and must strictly follow the technical parameters and maintenance cycles provided by the manufacturer during operation..