A stainless steel reactor is a reaction vessel classified as a pressure vessel. It must be operated strictly in accordance with regulations and guidelines. Caution is crucial during operation, as damage and personal injury can occur due to various reasons, leading to the forced halt of production. Risks are inevitable in any industry. To mitigate risks, it's essential to pay attention to multiple aspects during operation. Before operation, thoroughly inspect the daily-used stainless steel reactor for any abnormalities and become more familiar with the functional characteristics of the reactor used in your company, such as troubleshooting for normal operations and reasons for installing flow baffles inside the reactor, etc.
Today, I want to share with you the effects and uses of some common equipment.
The reason for installing baffles is to prevent vortex phenomena. Effect: When the material has a low viscosity, the impeller rotates at high speed, and under the action of centrifugal force, it generates tangential flow, allowing the liquid to be thrown around the pot wall and rise along the circumference of the pot. The center liquid level naturally drops, forming a large cavity inside the stainless steel reaction pot. We collectively refer to this phenomenon as a vortex. The swirling material rotates closely around the stirrer shaft, resulting in poor mixing. If there are many solid-liquid materials in the mixture, phase separation or stratification may occur. When the material has a high viscosity, the outer surface of the liquid layer will draw in a large amount of air, reducing the apparent density of the liquid. This can cause the stirrer shaft to vibrate when subjected to different effective forces. Even due to the large-scale of the reaction pot, the entire platform may vibrate.
Our daily-used stainless steel reactors require anti-static functionality, specifically the installation of an anti-static floor machine. After the autoclave passes through the filter, before the fluid enters the storage tank, an anti-static inhibitor is installed. This prevents the mixing of water with autoclave medium, the mixing of different media, and the mixing of liquid media, oil and gas with compressed air. Even if the storage tank is dehydrated, special attention must be paid to dehydration before feeding. Control the injection method of the medium, ensuring that it is injected from the bottom of the tank to minimize injection from the top and bridging. The floating roof of the floating roof tank should be bridged with the tank wall; when using insulating materials or when insulating materials corrode, the pipes should be bridged with valves, flowmeters, filters, pumps, and so on. Control the flow rate of the medium; the higher the flow rate, the more likely static electricity is to be generated. Furthermore, by adding anti-static additives to the autoclave, the static charge in the medium will not accumulate and will quickly leak to the ground through cross-charging grounding.
3. Three Key Points for High-Pressure Stainless Steel Reactor Disassembly: After unloading, the high-pressure stainless steel reactor should be cleaned immediately, and it must be disassembled before cleaning.
Now, let's explore three key considerations for unloading from high-pressure stainless steel reactors.
1. Inject the reaction solvent into the kettle from the exhaust valve, wash away most of the residue, then add water and stir for about ten minutes. Only then can the kettle lid be opened to clean the inner wall.
2. During cleaning, the lid and the sampling valve need to be cleaned. When there's water in the pot, slightly fill it with nitrogen.
3. For temporarily unused stainless steel reaction vessels, they can be soaked in 70% pure, anhydrous ethanol by volume, and then loosened.
