Patent ID: 9217108
Filing Date: 2015-12-22
Classification: A01G,B01D,C09K

Abstract:
1. A method, comprising: providing gypsum to a mixing device using a conveyor wherein the mixing device is disposed downstream of and fluidly coupled to the conveyor; mixing the gypsum with a fluid in the mixing device to produce a first gypsum slurry; directing the first gypsum slurry to a separation tank fluidly coupled to the mixing device; separating first gypsum particles having a first particle size from second gypsum particles having a second particle size, greater than the first particle size, in the separation tank to generate a second gypsum slurry and a third gypsum slurry, wherein the second gypsum slurry comprises the first gypsum particles, and the third gypsum slurry comprises the second gypsum particles; supplying the second gypsum slurry to a storage tank via a first slurry passage fluidly coupling the separation tank and the storage tank; and recirculating the third gypsum slurry to the mixing device via a second slurry passage fluidly coupling the separation tank and the mixing device.