If a sudden fault occurs during the operation of the weighing coal feeder and emergency repairs are required, and the outlet gate valve cannot be closed, what should be done?
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In the event of a sudden failure during the operation of the weighing coal feeder, emergency repairs are required. The circulation fan must also continue to operate in order to cool down the system, and the outlet gate valve of the coal feeder cannot be closed. How can this situation be addressed in order to allow maintenance of the weighing coal feeder?
The gate valves provided by our company to our customers are widely used in coal mills and coal feeders, and we have not encountered any situation where such gate valves fail to close, as you mentioned. I’m also very interested in learning about this; I’ll wait for experts to come up with good solutions, so that if I encounter a similar situation at work, I can have those solutions readily available
Use ceramic ball valves. Sometimes, in an attempt to save money, cheaper alternatives are used, and problems arise at critical moments; it’s the workers on the front line who end up suffering as a result!
Our drop plate valve has never been put into use; when the coal feeder fails, the speed of the circulation fan is reduced to lower the negative pressure, as well as the opening degree of the vent valve. It has been maintained this way all along.
To reduce negative pressure, pay attention to changes in system temperature and carbon monoxide levels, and reduce the venting
Keeping an eye on it; hope the original poster gets good news – don’t forget to share it.
We have encountered the situation described by the original poster as well; we are looking forward to a solution. Excuse me, which company do you work for?
I completely agree; there’s nothing we can do – after all, we’re just ordinary workers One must only take care of themselves.
I’d like to learn more in detail about the operating conditions of the plant, such as temperature, pressure, the type of medium used, and the diameter of the valve openings, etc. Let’s work together to find solutions to various problems that arise on site!