Generally, the assembly, disassembly, and commissioning of centrifuge equipment significantly impact its operation; therefore, attention to detail is crucial during the commissioning process. There are many types of centrifuges, and each requires specific adjustments—either before or during use—to meet basic separation requirements. This article provides guidance on common issues and solutions encountered during centrifuge commissioning, as outlined below:
1. To ensure equipment stability, the centrifuge must be securely anchored.
2. Users must master the skill of using a plumb bob to level the equipment accurately.
3. Users should understand basic circuit installation principles relevant to the equipment—such as determining the appropriate capacity for circuit breakers and thermal overload relays to handle sudden current surges.
4. To achieve optimal separation results, users must understand the basic characteristics of the materials being processed, such as viscosity, temperature, fluidity, and flow rate, and how these factors influence separation efficiency.
5. Users need a detailed understanding of the machine's core components and rotational speed. This includes performing regular checks on positioning marks and the assembly of the three-vane plate, as well as inspecting steel and copper bushings for wear (inspections should be conducted monthly).
6. Users must be instructed on the proper use of all specialized tools, particularly those used for key removal.
7. Two specific scenarios require attention during the material separation process:
(1) Excessive flow rate: If the material generates excessive foam and overflows, the flow rate must be reduced.
(2) Damage to the large gasket on the drum's bottom shaft cover: This requires immediate attention (replacement). When replacing the gasket, inspect the mating surfaces (rabbet) for wear, ensure the liquid collection tray is tightly secured, and reduce the processing throughput.
8. Inspect the centrifuge's buffer mount and square key for wear; replace them promptly if wear exceeds specified limits (generally, the buffer should be replaced every three months).
9. Users are required to clean the feed-end bearing base every 15 days and inspect the compression spring for wear, as well as check the clearance between the steel and copper sleeves.
10. Pay attention to the protection and clearance of the register fit (spigot joint) between the bowl and the suspension shaft. If the clearance is tight and the suspension shaft cannot be separated from the bowl, tighten the locking nut by 2–3 threads and rock the assembly evenly from side to side; the use of tools to force separation is strictly prohibited.
11. Clearly communicate details regarding the centrifuge's primary wear parts to the user to avoid operational issues.
12. Provide specific explanations regarding the feeding method and its impact on separation performance.
Note:
1. Before starting the main unit, ensure the scraper is in the raised position and clear of the bowl wall. These adjustments must be performed while the machine is stopped; making adjustments while the machine is running is strictly prohibited.
2. Scraping speed generally depends on material characteristics. For harder materials or those that are difficult to dewater, the scraper's lifting and rotating speeds should be slower to prevent motor stall, which could cause the motor to overheat and burn out. Once the manufacturer's service personnel have set the speeds, they should not be altered arbitrarily.