SU64609A1 - Continuous Diffusion Apparatus - Google Patents

Description

The diffusion method of extracting juice from beets has been used in sugar factories for 70 years, and all this has not stopped trying to replace Robert's periodically operating diffusion batteries with continuous devices. But only in recent years some success has been achieved in this direction. In 1930, a Berger rotary diffuser was patented in Belgium, which, when tested, along with the achievement of continuity of the process, showed good technological results in drying the sugar beet chips. Rotary-type diffusion devices were also proposed by Mandryko in 1928 and Karapuzov in 1931.

These devices allow diffusion in a continuous way and are drums rotating around a geometric axis. The drum is divided into sections by perpendicular partitions to its axis. These partitions have the central holes of the city, in which the inclined partitions are located. The latter serve to direct the material being processed from one section to another. In addition, the perpendicular partitions are provided with peripheral openings for the flow of fluid. Between the transverse partitions are longitudinal partitions that serve to lift the material being processed.

The author of the present invention proposes a similar continuously operating diffuser, different from the apparatus described above, with the introduction of double partitions perpendicular to the axis of the drum. The latter are installed at a certain distance from each other, and in the first, along the course of the liquid, the partition of the hole for the flow of fluid is located near the central opening, and in the second, at the periphery.

The proposed apparatus (see diagram) is a cylindrical drum rotating on tires and rollers at a speed of approximately one revolution per 2-3 minutes. The diameter and length of the drum depends on the performance and can reach: length 14-15 m, diameter 4 m.

The drum is divided into a number of sections (from 6 to 10) with 1-11 double annular partitions 3 perpendicular to the geometric axis.

cylinder. The sizes and the device of sections are absolutely identical. In each section there are screw partitions 2, located at an angle of 45 ° to the generator cylinder. The partitions are made of a perforated three millimeter sheet sheet. The angle of friction between the chips and the iron under the liquid is 35 °. Therefore, when the screw angle is 45 and the drum rotates, the chips will be raised by a screw partition and crawl to the opposite end of the section, and the liquid will flow through the holes in the partition. Coming out of the liquid and rising up on the partition, the chips with a known rise of the screw partition will fall down again, but not in the place where it entered the section, but closer to the exit. In this way, pouring and mixing the chips with the liquid in the section and moving it to the outlet of the section is carried out. For transferring chips from section to section, a conic surface 2 is installed between each partition between sections. A wide part of the cone is inside the section and narrowly directed to the exit to the next section. The chips, advancing in one section before reaching the other, rise by a screw longitudinal partition, separate from the juice and, rising to a known height, slide from the screw partition to a conical surface and fall into the next section. The angle of the cone-takl is not less than 45 °, which fully ensures the slipping of chips,

The juice flow is provided by openings located in the double partitions between the sections. Sec enters from one

sections towards the movement of chips through the holes 4 in the upper part of the transverse partition, goes between the partitions and, rising in the space between them, passes through the holes 5 to the next section. Placing the upper holes in the transverse partitions at different heights, one can create a difference in the levels of juice and a drop in the level in the direction of movement of the juice.

The finished juice is taken in the first section, where fresh chips come in, and the pulp is discharged from the opposite end using a tapered surface. Thus, no wastewater is generated.

Subject invention

An apparatus for continuous diffusion, which is a drum mounted rotatably about a geometric axis, divided into sections perpendicular to the axis. partitioned and having central openings in which inclined partitions are located for the direction of the processed material from one compartment to the next and, in addition, holes for the flow of liquid, and also having between these partitions and longitudinal partitions serving to lift the material being processed, characterized in that the said sections are separated by double partitions installed at some distance from each other, in the first of which there are holes for the flow to flow along the liquid They are located near the central opening, and in the second - at the periphery.

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