SU1194472A1 - Pneumatic mixer - Google Patents

Abstract

1. PNEUMATIC TOOL, comprising a housing with a conical bottom, coaxially mounted in the housing a circulation pipe and a nozzle mounted in the bottom, characterized in that, in order to increase the efficiency of mixing powdered and granular materials by changing the speed of movement of the layers of material in the radial planes x, it is provided with a cylindrical insert installed between the circulation pipe and the nozzle with the possibility of moving it in a horizontal plane parallel to the axis of the mixer.

Description

2. The mixer according to claim 1, about t l and h a- at the level of the lower end of the circulating ring and with the fact that the upper end of the cylindrical insert is located

1194472

pipe

and the lower end is inserted into the nozzle. t

The invention relates to the technique of mixing bulk materials and can be used in all fields related to the processing of these materials, for example, chemical, metallurgical, etc.

The aim of the invention is to increase the efficiency of mixing powdered and granular materials by varying the speed of movement of the layers of material in radial planes.

1 shows a pneumatic mixer, a general view; Fig.2 section aa in Fig.1.

A pneumatic mixer (Fig. 1} consists of a vertically mounted housing 1 with a lower conical bottom 2. a vertical circulation pipe 3 installed therein, a nozzle 4 mounted in the bottom of the dust separator 5, a capacitive extension of the circulation pipe installed in its upper part and ensuring continuous monitoring of the mixing process using a recording device.

For introducing the components to be mixed, there is a manhole 6, and for unloading the finished mixture - manhole 7. A cylindrical insert 8 in the form of a tube is installed in the nozzle 4 with the possibility of moving it in a horizontal plane parallel to the axis of the mixer using a lever 9. Moreover end of the circulating tube, and the bottom is inserted into the nozzle. The working gas is supplied to the mixer through pipe 10.

Main dimensions of the device: Height of the hopper with a conical bottom, m, 3 Diameter of the hopper, m 1 Internal diameter of the circulating

pipes, m

0.19

Inner diameter

pass

capacitance holes

sensor, m

0.19 Circulation length

pipes, m

2.5

Output diameter

holes mm

40

Inner diameter

tubular insert, mm

20

Wall thickness

tubular insert, mm.

0.8

Tubular length

inserts, m

0.2

The main technological parameters of the device:

Full load weight

bunker, t

1.0

Feed pressure

air atm

0.2

300 air flow

Mix ratio

G: 1

components

The mixer works as follows.

From the OUTPUT hole of the nozzle 4, gas flows with a flow rate that provides pneumatic transport of this bulk material through the circulation pipe 3 to the upper part of the housing I .. The exhaust gas through the dust separation device 5 exits the apparatus, and the material under the action of J gravity from the upper volume of the housing 1 moves to the zone of the gas jet. The cylindrical insert 8 creates a variable area of gas inlet in the conical bottom 2 along the perimeter of the nozzle 0 (nozzle area A), and therefore creates a distribution of the velocity of the material in the radial planes of the housing 1. In the area of the gas jet zones A are mixed particles coming from different horizontal layers of material.

Claims (2)

1. PNEUMATIC MIXER, comprising a housing with a conical bottom, a circulation pipe coaxially mounted in the housing and a nozzle mounted in the bottom, characterized in that, in order to increase the mixing efficiency of powdered and granular materials by changing the velocities of the movement of material layers in radial planes It is equipped with a cylindrical insert installed between the circulation pipe and the nozzle with the possibility of moving it in a horizontal plane parallel to the axis of the mixer. With 4 ^ 4 ^ YU 2. The mixer according to claim 1, distinguished by the fact that the upper end of the cylindrical insert is located at the level of the lower pipe; and den into the nozzle. i end