RU2066238C1 - Mixer - Google Patents

Abstract

FIELD: loose materials and their mixtures mixing with liquids. SUBSTANCE: mixer has mounted with capability to rotate drum 1 with concentrically located sections of different diameter with holes for overflow in opposite ends of neighboring sections. In each section of drum on inner surface of partitions there are guides made in the form of inclined plates with rods or corners. EFFECT: simplified design. 2 cl, 6 dwg

Description

 The invention relates to mixers with a rotating drum and can be used to move bulk materials and their mixtures with liquids in the oil refining, construction and other industries.

A known mixer comprising a rotatably mounted drum with blades located along a helical line, loading and unloading devices [1]
The disadvantage of this mixer is the low productivity and mixing efficiency due to the formation of stagnant zones when mixing a thick layer of material.

Closest to the claimed object is a mixer containing a rotating drum with concentrically arranged sections of different diameters with holes for the flow of material at opposite ends at adjacent sections in which discontinuous inclined plates are located, and loading and unloading devices [2]
The disadvantage of this mixer also lies in the low efficiency of mixing the material upon contact with the surface of the plates, which do not create conditions for "turbulization" of the flow of the mixed material, and, accordingly, in the creation of stagnant zones and low productivity.

 The invention is aimed at increasing the efficiency of mixing materials and increasing the performance of the mixer.

 This is achieved by the fact that in a mixer containing a rotating drum with concentrically arranged sections of different diameters with holes for material flow at opposite ends at adjacent sections in which discontinuous inclined plates are located, and loading and unloading devices, these plates are placed along a helical line and have opposite tilt in adjacent sections, while the plates are equipped with rods or corners located on the working surface of the plates from the side opposite to their tilt. The plates are expediently made wavy.

 In FIG. 1 shows the proposed mixer, a longitudinal section; in FIG. 2 is a section along AA in FIG. 1; in FIG. 3 and 4 sections of plates with rods, tubes and angles; in FIG. 5 section of the septum at the place of installation of the plates; in FIG. 6 is a view along A in FIG. 5.

 The mixer includes a rotatably mounted drum 1, divided into sections 2, 3, 4, etc. partitions made in the form of pipes 5 of various diameters, mounted coaxially with the drum 1 and mounted on its end walls. In each section of the drum, guides 6 are installed on the inner surface of the partitions, made in the form of intermittent plates, which can be located along the screw line or offset relative to each other. The plates located on the walls of the first section material in the direction of flow of material have an inclination towards the loading opening 7, at the next section the inclination is toward the discharge opening, etc. In the partitions 5 and on one of the end walls of the drum, according to the number of sections, slots 8 are made for pouring material from section to section and to the unloading device 9.

 In one of the end walls of the drum, a hole 10 is made, connected to a loading hole 7.

 For better mixing of materials, it is advisable to install rods 11 (Fig. 3), tubes 12 (Fig. 3) or corners 13 (Fig. 4) on the working surface of the pipes from the plates, and the plates should be made wavy (Figs. 5, 6).

 The mixer operates as follows.

 The components of the processed material in the required proportions are fed using the loading device 7 through the hole 10 into the first section 4 of the drum 1 along the material.

 When the drum rotates, the processed material moves (slides) along the helical surface of the plates (due to the rotation of the drum and the execution of the plates along a helical line) in the direction of inclination of the plates. Having reached the slot 8, made at the end of the first section, the processed material goes into the second section 3 of the drum, where due to the opposite inclination of the plates changes its direction in the opposite direction, lengthening the path. The rods 11, tubes 12 or angles 13 mounted on the working surfaces of the plates create an obstacle to the material, forcing them to bend around, which creates additional mixing. Wavy plates also enhance the intensity of mixing, repeatedly changing the direction of movement of the material.

 After reaching the last section, the processed material through its slot 8 enters the unloading device 9.

 Thus, the proposed design of the mixer will allow, in comparison with the prototype with the same diameter and length of the drum, to improve the mixing efficiency of the mixed materials and to increase the productivity of the mixer due to more intensive mixing of materials and lengthening the distance that it passes from the loading hole to the discharge.

Claims (2)

 1. A mixer comprising a rotating drum with concentrically arranged sections of different diameters with holes for material flow at opposite ends of adjacent sections in which discontinuous inclined plates are located, and loading and unloading devices, characterized in that the plates are arranged along a helical line and have the opposite tilt in adjacent sections, while the plates are equipped with rods or corners located on the working surface of the plates from the side opposite to their tilt.  2. The mixer according to claim 1, characterized in that the plates are made wavy.

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