SU512239A1 - Saturator - Google Patents

Description

one

The invention relates to equipment for the sugar industry.

Known saturator made of a vertical cylindrical tank with a conical bottom, equipped with nozzles for introducing saturation gas, pipelines for supplying decanted and discharging treated juice, mounted along the axis of the tank with a vertical shaft with a drive, paddle stirrer, juice dispenser, defoamer and distribution grids.

However, the low utilization of carbon dioxide, the poor distribution of defecated juice in the saturator cause a small contact surface of the phases and cause poor gas absorption in the upper part of the apparatus.

The purpose of the invention is to increase the contact surface of the phases and increase the utilization rate of carbon dioxide.

This is achieved by the fact that the blades of the agitator are vertical, radially curved perforated plates with segment lids mounted on top. At the same time, the juice dispenser is made in the form of a glass having concentric cutouts in the bottom, under which cone-shaped plates are attached coaxially, with curved vanes on the outer surfaces of the inner plates, and a defoaming disk on which curvilinear blades are mounted to the outer surface of the glass. The blades of the stirrer m are placed on the same level as the nozzles for introducing the saturation gas.

FIG. 1 schematically shows the proposed saturator, a longitudinal section; in fig. 2 is a section along the line A-A in FIG. one; in fig. 3 is a section along BB in FIG. one; in fig. 4 - section

bb in fig. one; in fig. 5 is a view along arrow G in FIG. 1 (here conventionally, the distributor and the outer cones are not shown).

The saturator is made of a vertical cylindrical tank 1 with a conical bottom

2, in which four tangentially located nozzles 3 for gas supply and a pipeline 4 for extracting the extracted juice are mounted. A piping 5 is connected to the tank for supplying the defecated juice,

exhaust pipe 6 and pipe 7. A vertical shaft 8 with a drive 9 is installed along the axis of the tank. In the lower part of the tank, a paddle stirrer is mounted on the shaft, the perforated blades of which 10 have segment covers

11- A distributor grids 12 are installed above the agitator on the shaft, above which is mounted a cylindrical juice distributor, made in the form of a glass 13 with a funnel. In the bottom of the glass there are concentric cutouts under which the cone-shaped plates 14 are coaxially attached, with curved blades 15 mounted on the outer surfaces of the inner plates. A horizontal disk 16 is attached to the outer surface of the glass. Curved blades 17 are mounted on the upper surface of the bowl. on the shaft 8 is mounted antifoam 18.

The operation of the saturator is carried out as follows. The decanted juice enters the tank 1 through the pipeline 5, enters the juice distributor 13, rotating on the shaft 8, and through the concentric cuts in the bottom of the glass onto the outer surfaces of the cones 14, which with their vanes 15 distribute the defrosted juice in the form of conical one above the other flat jets.

The saturation gas is introduced into the tank, in which the juice is located, through tangentially positioned nozzles 3. Crushing the gas is promoted by its capture by perforated curved blades 10 of the agitator placed at the level of the nozzles of the saturation gas inlet, thereby creating an increased juice-gas phase surface. Segment covers mounted above the vanes cause some of the gas to linger beneath them. When the blades rotate, the gas is distributed over their surface, passes through the holes in the blades, which contributes to its better mixing with the juice.

As the gas bubbles rise, they are again ground by the distribution grids 12 rotating on the shaft B, and the contact surface of the phases increases and renews.

The exit from the juice into the juice space, the bubbles of the saturation gas come into contact with the dispensed juice and are mixed intensively with it, which contributes to the additional absorption of the saturation gas and generally its better utilization. The unused portion of the gas, the antifoam agent 18, is removed from the tank through a chimney 6. The saponated juice through line 4 is sent to the control box and then to the settling and filtration.

When using a saturator in juice purification schemes using recirculation, the return part of the juice 1 of saturation is fed through pipe 7 to rotating vanes 17

disk 16, which contributes to better filtration and defoaming. If necessary, steam is additionally supplied to reduce foaming. The sediment accumulating in the conical bottom is stirred by paddles 10 of the agitator. Due to the increased gas crushing and mixing of the juice-gas phases, chemical mass transfer reactions are accelerated during gas absorption by the defecated juice, the gas utilization rate increases and

its consumption per ton of processed beets.

Claims (2)

1. A saturator made of a vertical cylindrical tank with a conical bottom, equipped with branch pipes for introducing saturation gas, pipelines for supplying decaturated and discharging of juice, installed along the axis of the tank with a vertical shaft with a drive, paddle stirrer, distributor of juice, defoamer and distribution grids, the fact that, in order to increase the contact surface of the phases and increase the utilization of carbon dioxide, the agitator blades are vertical perforated plates with radially bent plates with segmented lids mounted on top, the juice dispenser is made in the form of a glass having concentric cutouts in the bottom, under which are conic-shaped plates coaxially attached, with curved blades attached to the outer surfaces of the inner plates and the outer surface of the cup is attached disk defoaming, on which are mounted curved blades. 2. The saturator according to claim 1, characterized in that the blades of the agitator are placed at the same level as the nozzles for introducing the saturation gas. 13 W 8v $ r 15 73 .five