SU515643A1 - Mixing-roll unit for polymeric materials - Google Patents

Description

one

The invention relates to aggregates used for mixing and processing polymeric materials, for example rubber, in chemical and polymeric mechanical engineering.

A mixer-roller unit for polymeric materials is known, comprising a rotary mixer with gates and drive rollers located in the upper and lower parts of its body, and one of the rolls of which is mounted in the lower part of the mixer body.

The disadvantages of the known aggregate are the insufficient mixing quality, the need for a pneumatic system or hydraulic drive, the duration of maintenance of the process and the complexity of the design, due to the presence of the lower gate and the location of the walt.

The purpose of the invention is to intensify the mixing process and simplify the design.

For this, the second roll of the rollers is also installed in the lower part of the mixer root.

In the drawing, the image of the proposed unit.

The aggregate contains a hopper 1 into which the components of the mixture are loaded, and a pneumatic cylinder 2 created by the upper gate 3, the necessary pressure in the mixing chamber 4. In the mixing chamber there are two shaped rotors 5 rotating on 2

meeting each other at various district speeds. In the lower part of the housing of the mixture 1 body, two rolls 6 are installed. The rolls 6 are equipped with an individual drive (not shown in the drawing) with a reversible direction of the blade; due to this, the rolls can rotate towards each other and in the opposite direction.

The body of the mixer is made with holes for coolant supply (not shown in the drawing). The mixing and sealing parts of the unit are mounted on the same frame and base plate.

Blend the s-roll unit as follows: .t.

The bulk material is fed into the hopper 1, fills the mixing chamber 4, the upper shutter 3 is closed 5. The rotors 5 are driven to rotate. During the mixing cycle, the rolls 6 rotate towards the movement of the rotors, creating additional pressure in the chamber and facilitating the transfer of material due to its displacement into the intensive mixing zone (rotor-wall of the mixer). The sharp edges of the mixer body cut off the material falling between the rollers and the mixer body, directed it into the gap between the rotors 5 and the mixer body, which creates an additional mixing.

After the end of the lui Kjia, the mixed rolls 6 begin to rotate towards each other (with different or identical peripheral speeds), capture the material, carried out an additional displacement, homogenize, discharging and rolling. The rotors 5 of the closed-type mixer are rotated, which facilitates unloading and, in turn, improves the processing conditions of material B by the roll gap due to its displacement from the stockpile to the most intense shear deformations. The rolled-up material is removed from the rolls by special knives by trimming knives or manually.

F o rm - l inventions

Mixing-roll unit for polymeric materials containing a rotary mixer and driven rollers, one of the rolls of which is mounted in the IH of the lower part of the mixer’s corus, from section HI and so that, in order to imitate the process of displacement and reinforcement of the structure , the second roll of the rolls is also found in the part of the mixer cortus.