Valve for catalyst tank discharge line
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The valves in the catalyst tank draining line are very prone to wear – are there any good solutions for this? How often should the spent catalyst tank be emptied, and how can wear be prevented?
We remove the catalyst tank behind the three rotors every other day. As for the balancing agent, that is, the catalyst inside the regenerator, its amount is generally controlled based on the capacity of the regenerator
There isn’t that much catalyst in the waste tank; generally, these tanks have a large capacity. The three-spinners transfer waste to the tank once a week, and the waste is unloaded and packaged about every two months. Multiple valves are used for unloading the waste, with ball valves being the most common, as they allow for easy opening and closing.
We use two valves; the first one is normally open, and the second one is used for unloading the agent. For the second degree of wear, the valve can be replaced; the normal wear isn’t that severe either
There are usually two valves for the descaling agent; the first valve, which is connected to the regenerator, is a special valve made of a particular material. The requirements for the second valve are lower, as it can be replaced under normal conditions. We need to remove the descaling agent almost every week, and the valves function properly
If the temperature of the spent catalyst is not high, the wear should not be severe. It’s best to wait until the temperature drops before removing the agent.
Determine when to discharge the agent based on the amount of residue; the temperature should not be too high, as higher temperatures result in greater damage
The flow rate of the valve in the waste tank is not fast; it’s likely a quality issue with the valve. The two valves in my setup are made of ordinary materials, and no problems have occurred with them.
In terms of operation, it is important to ensure that the flow rate is not too high; additionally, when choosing valves, opt for those with wear-resistant linings!
First, a shut-off manual valve is installed below the waste catalyst tank; the diameter of the pipeline beneath the root valve is increased along with the installation of a shut-off valve. Subsequently, a manual valve with a smaller diameter is used to control the valve that regulates the discharge of waste catalyst.