plantprowler
Chemical
- Aug 10, 2013
- 136
I am brainstorming options to feed solids (approx. 500 kg) into a batch reactor (5000 L capacity). The solids are hard, crystalline, non-toxic, high-melting point, non-flammable. Granules / Prills. The solids come in bags which are weighed to deliver the right dose.
The feed also contains a organic liquid feedstock and water but in subsequent batches a part of the water of the previous batch is reused with partial recycle and the rest make-up. At the required dose the solids are completely soluble in the water quantity used for a batch.
Some options I was thinking about:
(1) Suck in with a hose / pipe & a vacuum through a top nozzle. (Reactor is already designed for full vacuum duty. But downside is that vacuum utility is not otherwise needed for reactor operations so must be specially provided. Also the vent condensor would need to be isolated so not easy.)
(2) Dump from some kind of hopper arrangement attached to one of the top nozzles. But a positive seal would be needed after batch starts.
(3) Have a feed tank where a solids + water solution is made and send that to reactor (downside is the agitator etc. duplication in feed tank)
(4) Some sort of inline mixer kind of arrangement where the solids get entrained with the water as it is being dosed into the reactor? Through some hopper sort of arrangement. Analogous to how a liquid may be injected via a dosing pump into a feed line. Does this exist?
Comments, thoughts, ideas?
The feed also contains a organic liquid feedstock and water but in subsequent batches a part of the water of the previous batch is reused with partial recycle and the rest make-up. At the required dose the solids are completely soluble in the water quantity used for a batch.
Some options I was thinking about:
(1) Suck in with a hose / pipe & a vacuum through a top nozzle. (Reactor is already designed for full vacuum duty. But downside is that vacuum utility is not otherwise needed for reactor operations so must be specially provided. Also the vent condensor would need to be isolated so not easy.)
(2) Dump from some kind of hopper arrangement attached to one of the top nozzles. But a positive seal would be needed after batch starts.
(3) Have a feed tank where a solids + water solution is made and send that to reactor (downside is the agitator etc. duplication in feed tank)
(4) Some sort of inline mixer kind of arrangement where the solids get entrained with the water as it is being dosed into the reactor? Through some hopper sort of arrangement. Analogous to how a liquid may be injected via a dosing pump into a feed line. Does this exist?
Comments, thoughts, ideas?