SU772575A1 - Mixer - Google Patents

Description

(54) MIXER

i

The invention relates to the building materials industry and can be used in a number of other industries for mixing solutions, suspensions and emulsions, followed by unloading the finished mixture from the container to the container.

A mixer is known for mixing various materials in liquid media with the presence of a pumping effect, including a tank, a stirrer and a casing covering the mixer 1.

The pumping effect arising from the rotation of the agitator is used to intensify the mixing of materials, however, the pressure created by this is not sufficient to discharge the finished mixture from the container to the container.

The closest technical solution to the present invention is a mixer comprising a container, a movable casing with openings and a nozzle for unloading the mixture and a mixing body 2 placed in the casing.

In the known mixer, the presence of leaks, large local resistances and abrupt changes in the direction of flow of the mixture causes a significant reduction in pressure.

The purpose of the invention is to increase the speed of discharge of the finished mixture by increasing its pressure.

This goal is achieved by the fact that in a mixer containing a container, a movable casing with a hole in the bottom and with a pipe for unloading the mixture and a mixing body placed in the casing, the casing is equipped with movable vertical rods with a disk with an aperture placed under them coaxially with the hole of the casing, while the casing is set movably towards the bottom of the tank.

FIG. 1 shows a mixer circuit; in fig. 2, section A-A in FIG. one.

The mixer contains a tank 1, a shaft 2 on which a mixing body 3c is mounted with a cantilever with screw-shaped blades 4, a casing 5 movably mounted towards the bottom of the tank 1, under the bottom of which is placed a disk 6 placed on movable vertical rods x 7. The casing 5 has discharge chamber 8 and nozzle for discharge of mixture 9.

Claims (2)

The movable vertical rods 7 are installed in the holes 10, placed in the flanges 11 of the casing 5, and ensure the movement of the disk 6 along the axis of the shaft 2. The bottom of the casing 5 is made with an opening 12, which is larger than the diameter of the displacing member 3. The disk 6 is made with an opening 13, which is coaxial with hole 12 and smaller than it in size. The mixer works as follows. When the mixer operates in the mode of moving, the disk b under the action of its own weight and pressure created by the screw-shaped blades 4 of the rotating movement body 3 moves downwards and opens the hole 12 in the bottom of the casing 5. The materials being mixed under the action of discharge enter the cavity of the casing 5 and under pressure are directed through the open hole 12 into the container 1. Since the mixing body 3 is completely open on the side of the hole 12 in the bottom of the casing 5, the pumping effect is maximally used to mix the mixture around Removing the tank 1. To transfer the mixer to pump mode, the casing 5 with the nozzle 9 and the mixing body 3 installed in the casing, the movable vertical rods 7 with the disk 6 placed on them move down to the stop. In this case, the disk 6 is pressed against the bottom of the casing 5, together with the latter forming an annular pressure chamber 8, covering the helical blades 4 of the transferring body 3 on all sides. The direction of rotation of the transferring body 3 is reversed, as a result of which, under the action of the discharge, the mixture flows through the hole 13 in the disk 6 to the transferring body 3 and under the action of centrifugal forces is injected into the pressure chamber 8. Then the mixture goes through the branch pipe 9 pumped from tank 1 to the container. Thus, the presence of movable vertical rods with a disk with a hole coaxial with the casing opening placed under them at the bottom of the casing, and setting the casing movably towards the bottom of the tank, creates an annular discharge chamber, resulting in an increase in the discharge rate of the finished mixture by increasing its pressure. Claims of invention A mixer containing a container, a movable casing with a hole in the bottom and with a nozzle for unloading the mixture and a mixing body placed in the casing, characterized in that in order to increase the discharge rate of the finished mixture by increasing its pressure, the casing is equipped with movable vertical rods placed on them under the bottom of the casing disc with a hole coaxial with the hole of the casing, while the casing is set movably in the direction towards the bottom of the tank. Sources of information taken into account in the examination 1. Kasatkin A. G. Basic processes and apparatuses of chemical technology. M., “Himi, 1971. p. 263, fig. VI-2. 2. Mitkin B. A., Titov A. I. Plastering, small and tiled works. Minsk, “Higher School, 1966. with. 234, fig. 121.