SU734283A1 - Saturator for beet-sugar production - Google Patents

Description

one

The invention relates to the field of sugar production, and specifically to devices for cleaning liquid intermediates from non-sugars, and can be used in the purification of diffusion juice and klerovki sugar in various purification schemes.

The closest technical injury to the invention is a saturator for beet sugar production, comprising a vertical cylindrical body with a conical bottom and an expanded upper part, cylindrical shells located in the body, a device for dispersing juice consisting of. vertically disposed nozzles installed at the base of a gas machine and a pipe for discharging the treated juice 1.

In the known saturator, the sedimentation-filtration parameters of juice remain low.

In the bubbling part of the apparatus, the distribution of alkalinity over the cross section is uneven, the residence time of the juice in the zone of gradual decrease in alkali is relatively small.

The aim of the invention is to increase the cleaning effect and improve sedimentation and filtration of the juice characteristics.

To do this, in the proposed saturator, cylindrical shells are mounted concentric to the body, the high inner wall exceeds the height of the outer and upper side of the internal shell, as well as a cone-shaped annular partition attached to the wall of the body, dividing the body into gas saturation and gas separation areas.

A truncated cone is attached to the outer cylindrical shell with a large base, and a coaxial shell is installed coaxially with the gap, around which the cylinder is also fixed with a gap to create separate communicating

25 between the saturation sections, with a guide cone placed under the cylinder, and gas supply devices located in the lower part of the cone-shaped shell n below

30 guiding cone.

FIG. 1 shows the proposed saturator; FIG. 2 is a section A-A of FIG. one.

The saturator contains a vertical cylindrical body 1 with a conical bottom 2, cylindrical shells 3 and 4j mounted in the upper part of the body mounted concentric to the body, a device for dispersing juice, consisting of nozzles 5 with removable nozzles

6dl juice supply device 7 and 8 for the supply of gas and the pipe 9 for removal of the treated juice.

The height of the inner shell 4 is greater than the height of the outer Z. To the upper end of the inner shell 4, as well as to the wall of the housing 1 a cone-shaped annular partition 10 is attached separating the housing into zones of saturation and separation of liquid from gas. A truncated cone 11 is attached to the outer cylindrical gull 3 with a large base, and the shell 12 is fitted coaxially with the clearance, the shell 12 around which the cylinder 13 is also fixed with a gap to create separate interconnected saturation sections. A guide cone 14 is placed under the cylinder. Devices 7 and 8 for gas supply are located in the lower part of the cone-shaped shell 12 and under the guide cone 14

The truncated cone 11 has an opening 15, and the cone-shaped shell of the juice overflow opening 16, under which the bump stops 17 and 18 are installed. In the upper part of the body there is a reflective umbrella 19 and a rotary valve 20.

The saturator works as follows.

The juice from the defecator is supplied under pressure of 0.2-0.6 MPa through the nozzle bis using the nozzles 5 cut into the volume between the shells 3 and 4. Saturation gas is autonomously fed into the apparatus through the devices

7 and 8, bubbling through a layer of juice

in section 21 and 22 of the apparatus and along the annular channel between the housing 1 and the cylindrical shell 3 flows in countercurrent in the direction of spraying of the solution into the volume of the mechshell shells 3 and 4. ,

With a strong foaming of juice, due to deterioration of its quality or disruption of the previous stations of the plant, the annular channel between the housing 1 and the cylindrical shell 3 may be filled with foam that will exit from it 3 drops of the solution.

When the solution is sprayed in the gas volume of the shell 3, the contact surface of the phases increases significantly. This significantly intensifies the process of CO absorption through the surface of flying droplets. In this case, the droplets with great force collide with each other or hit a film of sap flowing down the surfaces of the shells 3 and 4.

- secondary crushing of droplets, renewal of the contact surface of the phases, turbulization and breaking of the flowing film of juice. Fluctuations — gas pressures caused by the rotation of the flap 20 installed at the outlet of the apparatus further intensify the process of absorption of COg into the solution.

Next, the juice enters section 22, where the saturation process continues at the gelation stage, ensuring maximum absorption intensity of nonsugars. Partially gas-treated juice through the annular opening 16 enters section 21. In this section, to obtain good sedimentation and filtration performance, as well as to reduce the unevenness in the distribution of alkalinity over the section, organized circulation of juice is created.

Q Here, the moving bubbles sap up and down the annular channel 24 down the apparatus. The guide cone 14 provides a circulating fluid supply to

, j zone of exit of gas bubbles from the device 8. Purified juice in Bodits from the apparatus through the pipe 9.

The proposed saturator ensures the effective carrying out of the process of saturation, the improvement of the sedimentation and filtration properties of the sediment and the improvement of the quality of the purified juice.

Claims (1)

1. USSR author's certificate in application 9 2458108/13, cl. C 13 D 3/04, 15.02.77.