RU1819665C - Mixer - Google Patents

Abstract

Usage: for mixing viscous liquids and can be used, for example, in metallurgy. The agitator includes a rotor and a housing with an annular outer chamber for a coolant with inlet and outlet nozzles, in which annular partitions are installed, the housing is closed with covers with openings for the inlet and outlet of the medium. On the surface of the housing and / or rotor placed inclined working channels, which can be made with working blades or without them and communicated by longitudinal channels. The annular partitions in the chamber for the coolant are installed at an angle coinciding with the angle of inclination of the working channels, and form annular inclined channels for the cooling (heating) coolant, and the annular inclined channels are interconnected by axial channels. Annular inclined partitions can be fixed alternately on the inner and outer walls of the annular chamber for the coolant. When the rotor rotates, the liquid from the inlet enters the inclined annular working channels, is picked up by the radial paws of the rotor and, making a complex vortex movement, is directed by the rotor into the next system of consecutive inclined channels. In the channels of the scapula, the fluid flow slows down and organizes the circular motion of the fluid. The mixed liquid is sent to the outlet. Depending on the technological needs, the annular outer chamber for the heat carrier with inclined annular channels formed by inclined baffles can serve as a cooler or heater of the mixed fluid. The cooling fluid enters the chamber through the nozzle and, after passing a complex vortex-like path along the annular inclined channels and axial channels takes heat from the fluid being mixed and is removed through the outlet pipe. 2 ill. ate

Description

The invention relates to the field of mechanical engineering, in particular to devices for mixing viscous liquids, and can be extended, for example, to metallurgy.

The purpose of the invention is to increase the efficiency and reliability of operation when mixing various liquid media.

In FIG. 1 is a longitudinal section of a device; figure 2 is a section aa in figure 1.

The agitator includes a rotor 1, a housing 2, closed by covers 3 and 4 with openings 5 and 6 for the inlet and outlet of the medium. On the lateral surfaces of the housing and the rotor facing one another, an inclination is made. ny working channels 7 and 8, in which

mixing elements in the form of blades 9 are fixed to the rotor, and blades 10 are placed in the channels of the housing.

The housing is equipped with an annular outer chamber (heat exchange jacket) for the heat carrier 11 with an input 12 and an output

13 nozzles and with installed sub-angle, coinciding with the angle of inclination of the working channels with the formation of annular channels

14 annular partitions 15 with axial channels 16, communicating annular chambers for the coolant. The inclined partitions 15 and 17 are fixed alternately on the inner wall 18 of the annular chamber for the coolant and the outer wall 19 of the housing.

The mixer works as follows.

When the rotor 1 rotates, the liquid from the inlet 5 enters the inclined working channels 7 and 8. It is picked up by the mixing elements in the form of blades 9 of the rotor 1, discarded onto the blades 10 and, making a complex vortex movement, is directed by the rotor to the next system of consecutive inclined channels. In the channels 8, the blades 10 slow down the fluid flow and organize its circular motion (see Fig. 1). The mixed liquid is sent to the outlet 6.

The annular outer chamber 11 for the coolant with the annular partitions 15 and 17 mounted at an angle of the working channels, depending on the functional needs, can serve as a cooler or heater of the mixed fluid. Cooling

the liquid through the inlet pipe 12 enters the annular chamber for the coolant 11, passes a complex vortex-like path along the inclined annular channels 14 and axial

channels 16, removes heat from the mixed liquid and is removed through the outlet pipe 13. If the output chamber 11 is used as a heater, a heated working fluid is introduced into it through the pipe 12, which is supplied to the mixed liquid and is discharged through the pipe 13, while the mixed liquid is heated to the set temperature.

Claims (2)

1. A stirrer comprising a rotor and a housing, closed by covers with openings for medium inlet and outlet, on the side surfaces of the housing and the rotor facing one another, inclined working channels are made in which mixing elements are mounted on the rotor, characterized in that , in order to increase the efficiency and reliability in operation at mixing various liquid media, the casing is equipped with an annular external chamber for the coolant with inlet and outlet nozzles and with angular channels installed at an angle coinciding with the angle of inclination of the working channels to form annular channels, annular partitions with axial channels communicating the annular chambers for the coolant. 2. The stirrer according to claim 1, from the principle that the inclined partitions are fixed alternately on the inner wall of the annular chamber for the coolant and the outer wall of the housing. 1819665 To i M {g / 3 4