Patent ID: 6783743
Filing Date: 2004-08-31
Classification: B01F,B65G

Abstract:
An apparatus for blending a hazardous solute and a volatile solvent at atmospheric pressure to form a solution product which substantially reduces starting material and product operational loss while improving environment safety, said apparatus comprising:a) a closed conveyor for supplying by gravity feed a predetermined amount of solute to a closed vessel; said closed conveyor including a hopper means in combination with a helix conveyor, said hopper means having a chamber, said chamber including a humidity control means and a blower assembly mounted within the chamber, said blower assembly having an inlet means with at least one particulate air filter for controlling air flow throughout said hopper means connected with a hopper vent in fluid communication with a first vent means for exhaust to the atmosphere, and a pneumatic accumulator operatively connected to the blower assembly for pulsing air through said filter to clean said filter and move product through said apparatus; b) a means for transferring a predetermined amount of solvent into the closed vessel, said closed vessel adapted for holding the solvent and the solute and having at least one inlet means at the top of said closed vessel for introducing solvent into said vessel, a mixing means, at least one outlet means for discharging solution product, and a vessel vent which is in fluid communication with a demister device, said closed vessel having means for measuring the weight in said vessel; said demister device being associated with said closed vessel at its top and in fluid communication with a second vent means for exhaust to the atmosphere, said demister device for adsorption of entrained droplets of solvent and solution product; and c) a means at the bottom of said closed vessel for transferring solution product from said closed vessel.