METHOD OF ADDING OIL OR OTHER LIQUIDS TO A DRY BULK POWDER
申请公布号:US2001045186(A1)
申请号:US19990309751
申请日期:1999.05.11
申请公布日期:2001.11.29
发明人:PENDLETON GREGORY B.;HUEGE FRED R.
分类号:B01J2/00;(IPC1-7):B05D5/06
主分类号:B01J2/00
摘要:The present invention is directed towards a method of preventing fine particles, especially liming material, from becoming air borne, and the addition of desirable chemical compounds to the particles. The method comprises feeding fine particles of solid to an enclosed inclined chute and locating at least a first inclined shelf and a subsequent inclined shelf within the chute, each shelf having an inclined top surface, a bottom surface and a leading edge. An addition funnel fitted with air pads may be used at the top of the chute to facilitate the even and continuous addition of particulates to the chute. Once the particles are fed to the top of the chute, they fall on the top surface of the first inclined shelf and slide down the inclined top surface by force of gravity until falling from the leading edge, thus forming a vertical free flow of particles. At least one liquid fog nozzle is located between the bottom surface of the first shelf and the chute, the fog nozzle creating a fog of liquid in the direction of the leading edge of the first shelf. Once the particles fall from the shelf, a fog is applied to the particles as the vertical free flow of particles falls from the leading edge of the first shelf. The inclined positioning of the chute allows gravity to pull the once coated particles to at least a second inclined shelf. After passing over at least the second shelf, the liquid coated particles are discharged through a discharge funnel, the liquid coating preventing fine particles from becoming air borne.
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