Carbon black pelletizing apparatus Patent #: 4010001
ApplicationNo. 05/870682 filed on 01/23/1978
US Classes:264/117, Agitating to form larger particles (i.e., accretion or agglomeration)422/242, Positive pressure type422/256, Liquid-liquid contact means425/222TUMBLING TYPE AGGLOMERATING MEANS FOR PARTICULATE MATERIAL
ExaminersPrimary: Spicer, Robert L. Jr.
International ClassesC09C 1/58 (20060101)
C09C 1/44 (20060101)
B01J 2/10 (20060101)
B01F 15/00 (20060101)
AbstractParticles being pelleted, e.g., flocculent carbon black being pelleted with water, are passed through alternating zones of increasing and decreasing pressure. An apparatus is disclosed in which a cylindrical shell comprises a rotatable shaft located substantially on the longitudinal axial center line of the shell. The shaft has pins positioned thereon forming at least one helix with alternate decreasing and increasing pitches along the helix thus to effect compression and expansion actions on the mass in the pelleter, thereby producing a narrow size range of pellets.