SU1685718A1 - Mixer - Google Patents

Description

5

The invention relates to devices for the preparation of viscous liquids and can be used in powder metallurgy, chemical industry and construction.

The purpose of the invention is to increase the mixing efficiency.

Figure 1 shows the mixer, a longitudinal section; figure 2 - section aa in figure 1; on fig.Z - section bb in figure 2; 4 shows a rotor with a cavity communicated with the loading and unloading nozzles, in which additional equidistant main blades m are made additional (between the latter there are additional vanes); figure 5 - mixer with a screw channel in the housing, a longitudinal section; Fig. 6 shows a mixer with additional blades arranged in a checkerboard pattern.

The mixer consists of a cylindrical body 1 with loading 2 and unloading 3 nozzles and a rotor 4 in the form of a drum. Protrusions 5 are formed on the side surface of the rotor, forming an annular or screw channel 6. The rotor 4 is made with zigzag blades 7, enveloping the projections 5, and blades 8 located on the side walls of the channel between the blades 7. Case 1 is made with protrusions 9 forming an annular or screw channel 10. On the side walls of the channel 10 are the blades 11. The rotor can be made with a cavity 12 communicated with the loading 2 and 3 discharge pipes in which equidistantly main blades are made 13 more, and Latter are additional vanes 14.

Making zigzag blades, envelopes of the protrusions, and blades located on the side walls of the channel between the blades, increases the efficiency of mixing by increasing the area of contact with the material by 2-4 times, so the dimensions of the machine can be reduced by 2 times.

Making blades on the side walls of the channel improves the organization of the flow of materials, and improving the organization of the material tray increases efficiency and reduces energy consumption by organizing coherent (vortex) movement of machines, the screw channel guides the material moving under the influence of the blades and the blade from the loading pipe to the discharge, and reduces the loss of impact and turn the stream. The implementation between the zigzag blades of the blades located on the side walls of the channel improves the uniformity of flow and thereby contributes to the improvement of the quality of mixing.

Performing the rotor with a cavity communicated with the loading and unloading nozzles, in which additional equidistant main blades are made additional, and additional blades are located between them, allows to improve the conditions of use of the mixer volume and thereby reduce the mixer length approximately twice, without increasing the drum diameter.

The arrangement of the blades in staggered order allows to reduce the resistance to movement of the material, since in this case some blades are located on one side of the channel and others are on the other side, the channel flow area increases with the same area of the meridional section of the blade. To reduce the diameter of the mixer, equidistant trimming of the zigzag blades and the protrusions of the rotor can be carried out.

The mixer works as follows.

The liquid material from the loading nozzle 2 enters along the movement into the mixing chamber formed by the housing 1 with the annular or screw channel 10, then enters the channel 6 located on the rotor 4. picked up by the blades 7 and then with the rolls 8 and making a spiral movement in working channels, mixed and sent to the discharge pipe 3 to the consumer.

Performing the mixer in this way allows to increase the mixing efficiency by increasing the area of contact between the blades and channels with the material by 2-4 times and to reduce the dimensions of the mixer.

Claims (2)

1. A mixer comprising a cylindrical body with loading and unloading nozzles and a rotor, on the side surface of one of which projections are formed that form an annular or screw channel, characterized in that, in order to increase the mixing efficiency, the body and / or the rotor are made with zigzag blades envelopes of the protrusions, and the blades located on the side walls of the channel between the blades. 2. A mixer according to claim 1, characterized in that the rotor is made with a cavity communicated with the loading and unloading nozzles in which an equidistant main blade m is made additional, with additional blades located between the latter, with r- in CO CO QO C4J I Fig4 five.