RU182044U1 - MIXING DEVICE - Google Patents

Abstract

The utility model relates to devices for mixing various liquid materials and can be used in chemical, mining, food, pharmaceutical and other industries. A mixing device containing a working chamber filled with ferromagnetic particles with a spherical side surface and a pipe for loading and unloading the processed material and a multiphase winding placed around the chamber, creating a rotating electromagnetic field around the chamber. The working chamber is made in the form of a cylindrical tank, in the lower part of which a separate pipe for unloading the mixed material is fixed, a stator is installed inside the chamber, rigidly fixed to the inner side surface of the chamber, a sealed cable for power supply is connected to it, a rotor consisting of a cylinder in the body which channels are made inclined in the diametric section for passage of the components to be mixed, along the perimeter of the rotor a ferromagnetic insert is rigidly fixed, the upper and lower edges of which th are bent toward the center, the rotor is mounted on a rotation shaft, the upper and lower ends of which are connected to ball bearings, rigidly fixed in the center of the upper and lower surfaces of the working chamber.

Description

The utility model relates to devices for mixing various liquid materials and can be used in chemical, mining, food, pharmaceutical and other industries.

A device for mixing liquid media is known (patent RU No. 60395, published on January 27, 2007, comprising a housing, a drive, a shaft with a sleeve placed thereon with blades suspended on elastic flat elements fixed to the sleeve, with a width ratio of (a) and thickness (b) of the elastic element a / b = 5.

The disadvantage of this device is the low mixing efficiency and the need to install a powerful engine when using the device in standard high-capacity devices.

A device for mixing (copyright certificate SU No. 1398895, publ. 05/30/1988) containing a chamber with ferromagnetic particles, a pipe for loading and unloading materials and a multiphase winding concentrically around the chamber is known.

The disadvantage of this device is both the use of ferromagnetic particles in the mixing process, and their concentration in the Central part of the spherical side wall, which reduces the efficiency of mixing materials in the upper and lower parts of the chamber.

A device for mixing fluid (patent RU No. 86115, publ. 08.27.2009) containing a housing with a pair of drive rollers located therein, characterized in that the housing is made in the form of a table equipped with roller bearings with brakes at the bottom the upper plane of which is mounted parallel to each other a pair of rollers, one of which is connected to the drive, and the other is idle, while the drive roller is coated with friction material, and the idle roller is mounted with the possibility of fixed movement relative to the roller with a drive, and the drive is made regulated by the number of revolutions and is equipped with a temporary timer.

The disadvantage of this device is the presence of a complex system of roller-brake mechanism, requiring periodic maintenance.

A device for mixing liquid (patent RU No. 129424, publ. 06/27/2013) containing a vertical housing placed inside a heat exchange jacket, an agitator in the form of blades fixed to the shaft, nozzles for introducing the initial components of the device, a nozzle for unloading the finished device from the device body is known mixture, characterized in that the blades are fixed with a rise along the rotation of the mixer and are made in the form of hollow hydrodynamic tubes with suction and discharge holes located along the entire working length of the shaft at an angle to the axis in la, which divides the tube in the ratio of 1: 3.

However, mixing in this device is not intensive enough due to the fact that half of the liquid that is sucked into the expanded part of the blade, reflected from the device body, falls into the lower part of the tank again, without mixing with the upper layers of the liquid. In addition, clogging of the tubes along the entire working length of the shaft with a solid component is possible.

A device for mixing is known (patent RU No. 2356614, publ. 05.27.2009), adopted as a prototype, containing a working chamber filled with ferromagnetic particles with a spherical side surface and a pipe for loading and unloading the processed material and placed around the camera multiphase winding, creating around camera rotating electromagnetic field. The working chamber of the device is equipped with a deflector of ferromagnetic particles located inside the chamber in its special part, made in the form of a triangular ring in the diametric section of the form with straight or curved generators.

The disadvantage of this device is the presence of ferromagnetic particles, carried away by a rotating magnetic field, fragments of which can get into the mixed material; difficulties associated with unloading and further separation of the ferromagnetic particles from the mixed material; the location of the multiphase winding outside the special vessel, which limits the use of standard large-capacity vessels in the design of the prototype.

The technical result is the creation of a device for mixing various liquid materials, which provides an increase in efficiency during operation, energy saving during start-up, and a decrease in the power of the selected drive electric motor.

The technical result is achieved by the fact that the working chamber is made in the form of a cylindrical tank, in the lower part of which a separate nozzle is fixed for unloading the mixed material, a stator is installed inside the chamber, rigidly fixed to the inner side surface of the chamber, a sealed cable for power supply is connected to it, a rotor consisting of from the cylinder, in the body of which channels are made inclined in a diametric section for passage of the components to be mixed, a ferromagnet is rigidly fixed along the perimeter of the rotor a final insert, the upper and lower edges of which are bent toward the center, the rotor is mounted on a rotation shaft, the upper and lower end of which is connected to ball bearings, rigidly fixed in the center of the upper and lower surfaces of the working chamber.

The device for mixing is illustrated by the following figures, illustrated by graphic material:

FIG. 1 is a longitudinal section through a stirring device;

FIG. 2 is a top view of a mixing device with a cross section, where:

1 - a working chamber;

2 - pipe for loading;

3 - pipe for unloading;

4 - rotor;

5 - shaft of rotation;

6 - ball bearing;

7 - channels;

8 - ferromagnetic insert;

9 - flow deflectors;

10 - stator;

11 - sealed layer;

12 - sealed cable.

The device for mixing contains (Fig. 1, 2) a working chamber 1, in the form of a cylindrical tank and can be made of standard large-capacity vessels filled with ferromagnetic particles. Around the working chamber 1 there is a multiphase winding (not shown in the figure), which creates a rotating electromagnetic field around the working chamber 1. In the upper part of the chamber there is a separate nozzle for loading 2, in the lower part of which a separate nozzle is fixed for unloading 3 mixed material of mixed material. The rotor 4 is mounted on a rotation shaft 5, the lower and upper ends of which are attached to the ball bearings 6, which are mounted on the upper and lower parts of the working chamber. The rotor 4, consisting of a cylinder, in the body of which there are channels 7 inclined in the diametrical section for passage of the mixed components. The ferromagnetic insert 8, the upper and lower edges, which are bent to the center, are rigidly fixed on the rotor 4. These bent ends act as flow deflectors 9. The stator 10, which is rigidly fixed to the inner side surface of the working chamber 1, consists of a multiphase winding protected from the effects of mixed materials by an airtight layer 11. Electricity is supplied to the stator via an airtight cable 12.

A device for mixing works as follows. Through the nozzle for loading 2, the liquid enters the working chamber 1. When a voltage is applied to the stator winding 10 through a sealed cable 12, the rotor 4 with a rotation shaft 5 with a ball bearing 6 is driven by electromagnetic forces. The fluid is in the working chamber 1 through channels 7 passes liquid in the diametrical direction with flow diverters 9, due to which the degree of mixing throughout the volume of the working chamber is significantly enhanced, the mixed material is unloaded through the pipe for unloading 3 in the lower part of the chamber.

This device can be used to prepare a liquid carbon binder - one of the components for preparing a cold-packed hearth mass used for lining the bottom of an aluminum electrolyzer. A liquid carbon binder is prepared by mixing the required amount of coal tar pitch and heating it to a temperature of full melting, followed by the addition of absorption oil at a temperature of 50 ° C. The mixture is constantly mixed until its temperature is 50 ° C.

Claims (1)

A device for mixing, containing a working chamber filled with ferromagnetic particles with a spherical side surface and a nozzle for loading and unloading the processed material and a multiphase winding placed around the chamber, creating a rotating electromagnetic field around the chamber, characterized in that the working chamber is made in the form of a cylindrical tank in the lower parts of which a separate pipe is fixed for unloading the mixed material, a stator is installed inside the chamber, rigidly fixed to the inside the front side of the chamber, a sealed cable for power supply is connected to it, a rotor consisting of a cylinder, in the body of which there are made channels that are inclined in a diametrical section for passage of mixed components, a ferromagnetic insert is rigidly fixed around the rotor perimeter, the upper and lower edges of which are bent to the center , the rotor is mounted on a rotation shaft, the upper and lower ends of which are connected to ball bearings, rigidly fixed in the center of the upper and lower surfaces of the working chamber.

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