What to do if the horizontal sand mill is often blocked by the valve

Horizontal sand mills are often shut down due to clogged valves, and many employees do not know how to clean them and can only wait for maintenance personnel. This not only delays production time, but also leads to idle machines. In fact, valve blockage is a common failure, and the maintenance method is not difficult.
Welding slag, rust, slag, etc. In the pipeline, if the balance hole of the lower valve cover is blocked or blocked in the guide part, it may cause strain and scratches on the surface of the valve core and the guide surface, and there will be indentations on the sealing surface if it is serious. This usually happens in the early stages of a newly commissioned horizontal sander. Need to do internal cleaning, remove slag, open the plug, slag from the balance hole enters the valve cover, flush the pipe. Before putting into operation, let the regulating valve fully open, the medium flows for a period of time, and then put into normal operation.
For some media that are easy to settle and contain a corresponding amount of solid particles, ordinary valves should be used for adjustment. Typically, when the choke ports and deflectors are blocked, external flushing gas and steam can be inserted into the bottom of the bonnet. When the valve of the horizontal sand mill is blocked or blocked, open the external air or steam valve, that is, the flushing work can be completed without moving the regulating valve, so that the valve can operate normally.