SU1233928A1 - Mixer - Google Patents

Description

I I

The invention relates to devices for mixing dry and liquid components in the preparation of suspensions and can be used in the pharmaceutical, chemical, food and microbiological industries and in construction.

The purpose of the invention is to increase the quality of the mixture.

FIG. 1 shows a mixer, a general view; in fig. 2 is a section A-A and a of FIG. one; in fig. 3 is a view B in FIG. one.

The mixer includes a housing I, a mixing device 2 with a centrally located agitator 3, breaker plates 4. On the housing cover there is a pipe 5 for supplying a liquid component with a pipe 6 and a pipe 7 for loading the dry component. In the lower part of the housing 1 is the pipe 8 unloading the finished suspension.

In the housing 1, a guide cylinder 9 is coaxially mounted, with the agitator 3 in the upper part. The upper end surface of the guide, cylinder 9 is chamfered, the upper bevel point is under the nozzle 7 of the dry component load. Vertical guide plates 10 are closed on the guide cylinder 9. The coaxially mounted concave disk 12 and the figure ring 13 which surrounds it are fixed to the lower part of the guide cylinder 9- by means of the ribs 11. The ring 13 is installed with a gap relative to the concave disk 12 and forms with it an annular gap.

The concave disk 12 and the equidistantly mounted relative to the disk ring 13 provide protection for the unloading of the finished suspension from falling into the dry component, as well as forming an upward flow of the suspension.

33928 2

Mixer) works as follows.

Fluid and dry components are fed through nozzles 5 and 7, which displace the stirrer 3. Axial circulation is created in the mixer, the presence of a bevel on the guide cylinder 9 provides a higher lift of suspension under the nozzle 7, which creates a stagnation tichesky pressure directed to the opposite wall of the mixer. On the other hand, the guide plates 10 form tangential slurry flows in the upper part of the mixer. Everything

15, this ensures a uniform distribution of the dry component coming from the nozzle 7 over the liquid surface and its even supply to the mixer 3 reduces the formation of lumps 20 and speeds up the mixing process.

Next, the flow of the suspension and the dry component, falling into the guide cylinder 9, is actively stirred by a high-speed stirrer 3, while a significant axial velocity is reported to the flow. The high-speed slurry flow from the guide cylinder 9 enters the disk 12, where the outgoing axial flow is formed and 30 slurry separation occurs due to inertial forces. In the layer immediately adjacent to the concave disc 12, a suspension is prepared. At the approach of the finished suspension to the periphery of the concave disk 12, it falls into the gap of the concave disk 2 and the ring 13 and enters under the concave disk 12 to the nozzle 8 of the finished suspension unloading,

35

40

45

When lumps of the dry component are present in the suspension, they rush to the ring 13, being found in the upper layers, together with the upward flow of the suspension rise upward to repeat the mixing cycle.

ten

Srig, 2 View 5

Cpus, 3

Claims (1)

MIXER comprising a housing with vertically symmetrically arranged plates, loading and unloading nozzles, pipelines for supplying a liquid component, a centrally located mixer, characterized in that, in order to improve the quality of the mixture, it is equipped with a guide cylinder with a beveled upper base and guide plates mounted on the housing and located coaxially to the shaft of the ring, rigidly connected to the guide cylinder, and placed under the ring a concave disk with a conical central part, the mouth it is updated concentrically to it, moreover, the apex of the sloping base of the guide cylinder is located under the loading nozzle, and the apex of the conical central part of the concave disk is directed toward the guide cylinder, while the diameter of the concave disk exceeds the diameter of the guide cylinder. SU „, 1233928