Patent ID: 9212240
Filing Date: 2015-12-15
Classification: B01F,B29B,C08F,H01B,Y10T

Abstract:
1. An equipment for producing polymer pellets comprising one or more polymer components and one or more further components, which equipment comprises at least one first mixing apparatus for introducing at least one of said further components onto polymer pellets, which said first mixing apparatus comprises: an inlet for feeding polymer pellets into said first mixing apparatus to form a pellet stream, a first mixing section provided with a mixing device, said mixing device moves and mixes said pellet stream along said first mixing section, at least one application device, said at least one application device applies said at least one further components onto the polymer pellets at one or more positions selected from prior to said first mixing apparatus, at said inlet of said first mixing apparatus, and within said section of said first mixing apparatus, and an outlet for removing the mixed pellet stream from said first mixing section, wherein said first mixing section is an elongated mixing section and is arranged horizontally or essentially horizontally within its longitudinal direction to move the said pellet stream along said section from the inlet towards the outlet, said mixing device for moving and mixing said pellet stream in said first mixing section causes said mixing section to at least vibrate and also oscillate and thereby to cause the pellet stream to vibrate and oscillate within said mixing section and said mixing device for moving and mixing said pellet stream in said first mixing section is selected from the group consisting of one or more of a vibration causing apparatus arranged outside said first mixing section in an operational contact therewith, oscillation causing apparatus arranged outside said first mixing section in an operational contact therewith and fluidisation causing apparatus, no moving or static mechanical mixing device is present within said first mixing section, and at least one of said at least one application device is arranged in said first mixing section and extends within said pellet stream; wherein said first mixing apparatus comprises at least one static mixing section, allowing for further adsorption and mixing of the pellets, wherein said mixing section changes a flow direction of the pellets; and wherein said at least one static mixing section comprises one or more tubular bends for changing the flow direction of the pellets, each bend having a bending degree of at least 20° configured to provide an easier flow of the pellets, and wherein two adjacent bends are connected b an intermediate part inclined downwards.