SU1375309A2 - Arrangement for mixing viscous materials - Google Patents

Abstract

The invention relates to chemical engineering and makes it possible to increase the mixing efficiency of viscous materials due to the shear effect on the material being mixed. A device for mixing viscous materials comprises a housing inside which there is a mixing body made in the form of an outer and an inner coaxial helical spiral elements (E) with the opposite direction of elevation of the turns. The ends E are connected to the shaft (B) connected with the drive (P) of rotation, and the elements are made wavy with a constant step in the direction of the lifting of the turns. The initial components through the feed inlet pipe enter the housing and are driven into rotation by the mixing organ through the shaft. During the rotation of E, the components are mixed. After completion of the mixing by the piston from P, the mixture is displaced through the loading nozzle, while E is compressed in the axial direction before the contact of the coils, thus achieving a high degree of material unloading. 1 hp f-ly, 3 ill. o (l

Description

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The invention relates to devices for mixing and metering of unloading materials and is an improvement of the device according to the authors. St. No. 997782.

The purpose of the invention is to increase the mixing efficiency due to the shear effect on the material being mixed.

FIG. 1 shows the device, a general view; in fig. 2 is a view A of FIG. 1 (cover not shown); in fig. 3 is a section BB in FIG. one.

The device consists of a housing 1 with loading 2 and unloading 3 nozzles, a mixing body made in the form of an outer 4 and an internal 5 coaxially arranged elements with the opposite direction of the lifting of coils, a central shaft 6 connected to a rotational drive 7, a piston 8 connected to a drive 9 reciprocating movement, and the cover 10. The outer 4 and inner 5 screw elastic elements are made wavy, and the step between the waves of elastic elements B in the direction of lifting their turns is constant .

On the side of the cover 10, the ends of the screw elastic elements 4 and 5 are connected by means of a power bar 11, rigidly connected to the shaft 6, and on the side of the piston - by a power bar 12 with a sleeve 13 installed in the slide bearing 14 in the piston 8, rigidly connected in the direction of rotation with the shaft 6 with the possibility of reciprocating movement relative to the shaft. The strips 11 and 12 have a length equal to the inner diameter of the housing 1, and are provided with a length 10

elastic plates 15 installed in the direction of rotation and elastically in contact, respectively, with the surface of the cover 10 and floor 8.

The device works as follows. The initial components are fed through the feed inlet 2 and are driven into rotation from the actuator 7 through the shaft 6 by a stirring member. During the rotation of the screw elastic elements 4 and 5, the components are mixed simultaneously in the whole volume. After mixing is completed by the piston 8 from the actuator 9, the mixture is forced out through the unloading pipe 3, and the screw elastic elements 4 and 5

are compressed in the axial direction before the contact of the elements, thus achieving a high degree of material unloading. During the reverse course of the mold 8, a solvent is fed into the working cavity, by means of which, when the stirring member rotates

cleaning contact surfaces with material. The dissolved material remains are expelled by the piston and the cycle is repeated.

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Claims (2)

1. Device for mixing viscous materials by author. St. No. 997782, characterized in that, in order to increase mixing efficiency by 30 shear effects on the material being mixed, the outer and inner screw elastic elements are made wavy. 2. The device according to claim 1, characterized in that the pitch between the waves is elastic 35 elements in the direction of lifting their turns are made constant. Yid A FIG. 2 / 2