Suggestions for the modification of the aluminum trichloride powder feeding system for carbon pentene resin catalysts
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The company’s current feeding system features two-stage metering: a rough-metering tank and a precise-metering tank. Both use pressure-difference-based feeding methods. The valve used for transferring material between the tanks is a dome valve, while precise metering is achieved through the use of a screw pump. The material is fed in via nitrogen-pushed air, and a venturi tube is used before it enters the reactor to facilitate flushing. Current problems include irregular feeding between the metering tanks, frequent blockages in the pipelines downstream of the screw pump, and a high failure rate of the dome valves. I hope experts can offer some suggestions
Can the dome valve be replaced with a flap valve to give it a try?
Can a flap valve meet the sealing requirements, with a pressure difference of around three kilograms?
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By using a liquid catalyst, the amount of catalyst required is reduced and corrosion is minimized
The last edit to this post was made by yuyong527 on 2019-12-12 at 13:54. Question 1: “Unregular feeding in the metering tank room, and pipelines behind the screw pump tend to get clogged.” 1. Try using pipeline vibrators, whether pneumatic or electric, and control their activation in conjunction with the feeding process, either in advance or with a delay. 2. Appropriately modify the elevation difference of pipelines or equipment; ensuring a smooth inner surface of the pipelines, using right-angled bends, and installing static eliminators can help prevent powder blockages. Question 2: “The dome valve has a high failure rate.” What kind of failures? Is it a selection issue or a quality problem with the valve itself? There are many types of powder valves; there’s no need to worry too much about it. The faults of the valve itself are basically just those of the internal and external components; handling them is straightforward. Arrange a mechanic’s workshop; replace the vulnerable parts of the valves, such as valve stems, seals, actuator springs, pneumatic diaphragms, etc., with the best materials, and have them manufactured locally – that’s all that’s needed. You’ll understand once you become the factory manager – there’s nothing difficult in this world as long as you’re willing to work, haha.