Try Jacmor Engineering.

The process needs to be a batching one, weigh hopper over mixer, measured quantities of water and dust. You cannot get consistent feed of dust from your baghouse, hence inconsistent slurry density, either too dry or too wet if the process is continuous.

The best people to talk to are Hallweld Bennett: www.hallweld.com.au. They have tons of experience in handling this exact application.

Michael Reid. ■

You need a twin vertical shaft mixer; so you can feed between the mixing impellers. You are looking at a Chemineer level 8 of agitation, or 9, if you need to maintain a stable pulp or dilute slurry. You will have no problem at your product sizes & feed rates. See what Lightnin or Mixtec can do for you. Your main issue is finding a Linatex rubber lined pump small enough for your available water/slurry flows. ■

In addition, Lyle mentioned Transmin & issues. I've had, am still having, issues with all except the 2 manufacturers I now recommend. When you ask for a reference list the others all boil down to "Well we've made something similar:::but for a different material of course." Of course! Pulping is despairingly frought with chancers so be very careful.

Weir Warman of Warman Pumps fame also make an upstream Attritor Unit which you could put in the system. Then you could recirculate to maintain a homogenous pulp in the mixing tank & just send the effective high high to high(or low) fluid onwards. It means 2 rubber lined valves but they'd be cheaper than the mixer. The only trouble is you'd have to fork out for a Warman pump which would be just about run in when the rest of your plant had clapped out. Still there's a resale value in it somewhere. ■

Dear Sir:

We would need to know hourly volume of dust to be mixed and the amount of water to be added?

Would you like to consider a continuous single rotor paddle mixer for this application?

I am based in Canada and would welcome your call. Visit www.ajmixing.com for more info.

Regards,

Lyndon Flower ■