SU1765016A1 - Mixer - Google Patents

Abstract

Usage: devices for continuous mixing of construction materials. Essence: the device contains / body with a cylindrical shell, loading and unloading nozzles, shaft with pairs of diametrically located relative to the axis of the shaft of the rollers. The shell is mounted coaxially to the housing. The pairs of rollers are shifted at a height of the shaft by an angle of 90 °. The distance between the outer forming rollers is determined from the ratio do - (0.9-1.1) (do + d3) / 2, where d3 is the diameter of the elastic shell; do - body diameter; do- (1.3-1.4) d8. 2 Il.

Description

The invention relates to the building materials industry, namely to devices for the continuous mixing of building mixtures.

The closest is a device for continuous mixing of building mixtures, comprising a body of elastic material with loading and unloading openings, a working member, in the form of a shaft with pairs of diametrically located rollers relative to the shaft, in contact with the working surface of the shell.

The disadvantage is high energy consumption due to the energy affected by the breaking up after mixing the lumps.

The purpose of the invention is to reduce energy consumption.

Fig, 1 shows the mixer, a general view; in fig. 2 - mixer, plan view.

The device contains a shell 1 of elastic material, the axis is vertical. The shell 1 is connected by its upper and lower bases to the disks 2 with bearing assemblies 3 along its axis in which the drive shaft 4 is mounted. The disks 2 are connected by brackets 5 to a rigid cylindrical body 6 to form a gap between the shell 1 and the body 6. On the shaft 4, there are two pairs of diametrically located rollers 7, displaced in height and arranged in relation to each other at an angle of 90 °. The diameter of the outer forming rollers 7 is greater than the diameter of the elastic shell 1, but smaller than the diameter of the housing 6. Mainly

dp 0.9 ... 1.1 do ds: do (l.3 ... 1.4) ds A cone-shaped distributor 8 of material is fixed to the shaft 4 in its upper part, the lower edge of which is placed in the gap between the elastic shell 1 and the rigid body 6 The upper edge of the rigid body 6 is located above the cone-shaped distributor 8 and forms a nipple inlet 9. In the lower part of the body 6 there is a guide cone with nozzle 10, the discharge opening 11 of which is located above the conveyor belt 12. In the central part of the cone 10 there is an opening 13,

WITH

Xj o

SP O

cЈ

the ends of which are adjacent to the bearing unit 3. The drive shaft 4 through mechanical transmission (gear conical) 14 is connected to the shaft of the electric motor 15.

The device works as follows:

Due to the fact that the diameter of the outer forming rollers 7 is larger than the diameter of the shell 1, it will be deformed, and the distance between the elastic shell 1 and the rigid body 6, opposite the rollers 7 will be less than half of their difference

diameters, and at an angle of 90 ° with respect to the rollers 7 - more than half

th

differences in their diameters

d3 + do

. When a slave

Motor 15 turns the torque to a vertically positioned shaft 4. The mixture material supplied to the mixing device through the loading opening 9, with the help of a cone-shaped distributor 8 rotating on the shaft 4, fills the gap between the shell 1 and the rigid cylindrical case 6. 4, the rollers 7 fixed on the shaft 4 are driven around the inner wall of the shell 1. This changes the distance between the walls of the shell 1 and the rigid body 6. The mixture between the shell 1 and the hard

th

0

housing 6 will experience shifts, thereby mixing, and the lumps inside it will be crushed. The mixed mixture through the discharge opening 11 falls into the guide funnel 10, and from there onto the conveyor 12. Mixing the mixture throughout the thickness of the layer between the walls of the housing 1 and the casing 6 is provided when the conditions

dp (0.9 ... 1.1)

do + d3

; do (1,3 ... 1,4) d3

Claims (1)

Claim 15 Mixer, comprising a housing, inside which a shell of elastic material is placed with a gap, loading and unloading nozzles, a working body in the form of a shaft with pairs of rollers diametrically located 20 relative to the shaft axis, in contact with the working surface of the shell, characterized in , in order to reduce energy consumption, the shell is mounted coaxially to the body, and the pairs of rollers are offset at a height of the shaft by an angle of 90 °. moreover, the distance between the outer forming rollers is determined from the ratio do + d3 thirty do (0.9-1.1) where d3 is the diameter of the elastic shell; do (1,3-1,4) d3 - diameter of the body. Phys.