How can I achieve homogeneous in-line mixing of a Coolant with water?

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To achieve homogeneous in-line mixing of an alkaline coolant with water for a CNC machine, a combination of gravity-fed water and a metering or gear pump for the chemical is proposed. Flow rates will be controlled using sensors and valves to ensure accurate mixing ratios. The user seeks advice on effective mixing methods without the use of an external tank or agitator, considering options like static mixers or injection quills. Concerns about achieving a uniform mixture with these methods are expressed. Suggestions for mixing nozzles and related equipment are provided to assist in the design process.
kunalvanjare
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Hello guys,

This is for a new product I am designing, which involves topping-up or refilling the liquid into a CNC Machine or Part Washer.

I have to mix about a Litre of the chemical (alkaline.. pH in the range of 8-12) with about 50 Litres of water. The water will be fed under gravity through a 1" pipe, while the chemical will be pumped using a Metering or Gear pump either from a Chemical Barrel or a Tank.

Flow-rate of both the chemicals will be controlled with the help of flow sensors & valves because the system has to automatically calculate the quantity of each liquid as per inputs from the user.

Now, my question is how do I achieve mixing of both the chemicals to produce a homogeneous mixture? The objective is to do this in-line without use of an additional Tank & Agitator. I have pondered about using a Static Mixer or an Injection Quill, but I am not convinced I'll get a homogeneous mixture from these.

I simply cannot afford space for an external mixing tank as the output of my 'Dispenser' will be connected straight to the machine.

Request somebody with prior experience on similar fields to suggest or guide me towards a solution.

Thanks,
KV
 
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