Patent ID: 9662613
Date: 2017-05-30
CPC Classifications: A01G,B01D,C09K

Claim:
1. A system, comprising: a conveyor configured to receive gypsum from a gypsum storage unit; a mixing device fluidly coupled to the conveyor, wherein the mixing device is configured to mix the gypsum with a fluid to produce a first gypsum slurry; a separation tank downstream from and fluidly coupled to the mixing device, wherein the separation tank is configured to receive the first gypsum slurry, to separate first gypsum particles having a first particle size from second gypsum particles having a second particle size, greater than the first particle size, and to generate a second gypsum slurry and a third gypsum slurry, the second gypsum slurry having the first gypsum particles and the third gypsum slurry having the second gypsum particles; a first slurry passage fluidly coupling the separation tank and a slurry storage tank, wherein the first slurry passage is configured to supply the second gypsum slurry from the separation tank to the slurry storage tank; and a second slurry passage fluidly coupling the mixing device and the separation tank, wherein the second slurry passage is configured to supply the third gypsum slurry from the separation tank to the mixing device.