SU1500482A1 - Static mixer for polymeric materials - Google Patents

Abstract

This invention relates to mixers for polymeric materials. It can be used in lines for dyeing, granulation, production and processing of filled polymeric materials. The purpose of the invention is to improve the quality of mixing due to the uniform distribution of the input materials. For this, mixing elements are sequentially located in the static mixer housing. They have input, transitional and output separating discs with longitudinal channels communicated with feed channels made on the end surfaces of the disks. Mixing elements are mounted with the formation of cavities between them. An annular groove is made on the generator of the input separating disk. It is connected to the longitudinal channels through holes, and a fitting for supplying the mixed materials is fixed on the body. Ring groove communicated hole with a fitting. In operation, by dividing the total flow into multiple streams, changing the direction of movement and uniformly introducing and distributing the components, the quality of mixing is improved. 2 Il.

Description

6, a transitional separating disk 7 with longitudinal channels 8 communicated by means of feed channels 9 made on its end surfaces, an output separating disk .10 with longitudinal channels 11,. Between the successively installed mixing elements 4 there are cavities 12. a circular disk 5 is made. An annular groove 13, from the inner surface of which to the longitudinal channels 6 there are made through holes 14. On the housing 1 of the mixer there is a fitting 15 for supplying the materials to be mixed. a bore 16 with an annular groove 13 on the input separating disk 5,

The static mixer for processing polymeric materials works as follows.

The polymer melt is fed under pressure into the tubular body 1 through the opening 2. At the input separating disk 5, the flow Hai separates individual flows according to the number of longitudinal channels 6. At the same time, the longitudinal channels 6 through the nozzle 15 and the annular groove 13 through the holes 14 feed the with a given weight ratio mixing material, for example., using a gear pump, the components of the composition (stabilizers, dyes and other additives).

Thus, in all the longitudinal channels, 6 of the inlet divider disk 5, a strictly metered amount of ingredients introduced in time is supplied. Further, the polymer mass melt is divided into separate streams, repeatedly intersects, changes the direction of movement to perpendicular to the initial one on channels 6, 8, 9, 11, input 5, transitional 7, and output 10 separating discs and then falls into cavity 12 between mixing elements 4,. where all the streams are merged, mixing then the melt stream falls on. the next mixing element, etc. , the expense of dividing the mass flow into many separate flows, changing the direction of movement followed by their intersection and combining into common flows is achieved

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Dima mixing intensity. At the same time, the ingredients introduced into the melt are evenly distributed over the volume of the melt to be mixed in the longitudinal channels 6 of the inlet separator disk 5, and are also fed into the mixer evenly over time; which allows to achieve high distribution efficiency of mixing the components.

Thus, due to the factors listed, effective and high-quality mixing of polymer components with small amounts of various ingredients is achieved.

The proposed static mixer is easily mounted in the α-technology lines for mixing polymer-polymer compositions of polymers with various ingredients and pigments, highly dispersed mineral fillers, when performing the mixing process directly in the processes of processing polymer materials into products and parts by extrusion or injection methods, while ensuring a high homogeneity of the mixtures.

Claims (1)

Invention Formula A static mixer for polymeric materials, containing the 1st case and successively located in it, mixing elements, each having input, transitional and output separating discs with longitudinal channels and communicated with. : and feed channels made on the end surfaces of the discs, the mixing elements being mounted to form cavities between them, characterized in that, in order to improve the quality of mixing due to uniform distribution of the input materials, an annular groove is made on the lateral forming surface of the separating disc, from the inner surface of which to the longitudinal channels of the input separating disc are through holes, with the annular groove communicated with the hole with fastened on the fitting body for supplying mixed material.