How to take samples from an enamel stirred tank?
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The feed pipeline at the bottom of the enamel stirred tank contains stagnant liquid, resulting in large sampling errors. Is it reasonable to insert a manual sampler through the pipe opening on the upper head? I would appreciate some advice from experienced sea travelers.
If the operation is carried out from the upper head, it is relatively complex and involves certain risks; couldn’t we simply make an opening for sampling in a place where the medium is uniform?
No, it’s an enamel stirred tank with a jacket
If there is no population present, it is possible to use a port for sampling; a manual sampler can be inserted at the port on the head, or vacuum sampling can also be used. However, care must be taken to prevent what you refer to as \"dead liquid\".
……The pressure level inside the enamel reactor, as well as the physicochemical properties of the materials contained within it, are not clear; it’s difficult to say for sure… Our micro-positive pressure reactors use vacuum sampling, and there is also a method that involves using the pressure inside the reactor to push the materials upward in order to take samples…………
How is vacuum sampling achieved in your system?
……The sampling tube is inserted into the reactor and connected to the external sampler, which is made of glass; it is also connected to a vacuum pump. During sampling, the vacuum pump is turned on to draw out the material, while various valves are used to control the speed of material extraction and evacuation. The material is discharged from the side port of the sampler into the sampling bottle – it’s quite simple…
If there is a spare port on the head, a vacuum sampling device can be installed, but care must be taken regarding the distance from the stirrer.
There are no hazardous reactions at normal pressure, allowing sampling from the top. For the others, a sampling device should be installed at the bottom of the reactor; by using compressed air or the vacuum in the reactor, relatively standard samples can be obtained.
The manufacturers of vacuum samplers and enamel reactors come equipped with this feature; alternatively, circulation can be achieved through an external system, using an external sampling method