SU860810A1 - Settler for suspended particles - Google Patents

Description

one

The invention relates to the sugar industry, namely, apparatus for the purification of sugar-containing solutions from suspended particles, mainly citrus juice, treated with flocculants.

A suspended settler for suspended particles comprising a cylindrical case with a conical bottom, a thin layer separation module from plates in the form of an inverse cone, input units for the initial liquid and output of the separated phases l.

A disadvantage of the known settling tank is the low quality of purification due to the slow sedimentation of suspended particles.

The purpose of the invention is to increase the degree of purification due to the intensification of the process of separating suspended particles from carbonated juices.

This goal is achieved by the fact that in the module plates there are centrifugal openings, the diameters of which monotonously increase from the top of the viz, and the settling tank is provided with a cylindrical shell located along the axis of the housing, the upper end edge of which is attached to the edges of the opening of the upper plate.

The drawing shows the proposed settler, longitudinal section.

The sump for suspended particles consists of a vertical cylindrical body 1 with a nozzle 2 for supplying unfiltered juice of the first carbonation, an integrated preparatory section 3, conical plates 4, a connecting pipe 5 not reaching the bottom of the body and mounted along the axis of the housing 1 of the sump, cover 6 s 7, conical bottom 8, settler sump, accumulator sediment 9 with inspection

15 with glass 10, recirculation pipe 11, and dirt discharge pipe 12. The composition of the sump also includes pipeline 13, pumps 14 for recirculating the liquoriferous suspension, nipple 15

20 for supplying unfiltered carbonation juice and a water inlet pipe 16, a one-way preheater 17 with a condensate drain pipe 18, mounting feet 19 and a pipe 20

25 a steam supply, a valve 21, a nozzle 22 and a mixer 23, circular concentric pipelines 24, mounting feet 25, vertical pipelines 26 and 27 of the outlet a1, cleaned juice,

30 glasses 28 juice level controls, control juice box 29 juice and valve 30,

The sump works as follows. The saturation juice enters the upper preparation section 3 to separate the foam and gas. Through the connecting pipe 5, the juice enters the internal cavity of the working plates 4 and is distributed through them. The juice, evenly distributed over the entire area of the thin-layer working sections, rises along articulated cone-shaped containers, is picked up at the top of the section and sent through the control box 29 to the juice collection. The thickened sediment comes from the conical bottom 8 to the accumulator. Seed 9, from which 85-90% of it is taken to the vacuum filters through pipe 12 and 10-15% of sediment mixed with the same amount of unfiltered juice of the first saturation is directed through

The sedimentation rate of the juice of the first carbonation, cm / min

pipe 11 and the pipeline 13 for reuse for enlarging sludge particles. The mixture of juice and sediment is served by the pump 14 through the one-way heater 17, the nozzle 22 into the mixer 23 and further into the preparatory

sump section.

The optimal mode of sedimentation of suspended particles and saturation juice is achieved the next time the module is executed, when the diameters of the holes in the plates increase from top to bottom in the following order; 1.0: 1.8: 2.5:: 3.2: 4.0, and the plate heights are reduced in the following order: 1.0; : 0.8: 0.7: 0.5: 0.4.

The table shows the experimental values; they are based on the deposition rate in a thermostated cylinder, a settling tank with the indicated and other ratios.

P

In the present invention, the intensification of the separation of suspended particles is achieved primarily due to the articulated cone-shaped containers formed by the plates of thin-layer sections and the secondary cone-forming capacity formed between the edges of the truncated cones and the central connecting pipe, the return of a part of the sludge, the absence of mechanical mixing of the sediment in the working tapers. sections and improving hydraulic conditions in thin-layer operating sections and improving hydraulic conditions Vij in the machine.

Claims (1)

Invention Formula A sump for suspended particles containing a cylindrical body with a conical bottom, a thin layer separation module from the plates in the form of an inverse cone, input units for the initial fluid and output of separated phases, characterized in that, in order to increase the degree of purification due to the intensification of the separation of suspended particles, the module plates are made with central holes, the diameters of which monotonously increase from top to bottom, and the settling tank is equipped with an axial tube No. 1 arranged at a ratio of holes diameters to elkah 1: 2: 2: 2: 2 and the ratio of the heights of conical trays 1: 0.8: 0.7: 0.5: 0.4. Experiment No. 2 was carried out with the ratio of the diameters of the holes of the plates 1: 2: 3: 4: 5: 6 and the ratio of the heights of the plates 1: 1: 1.5: 2: 3. Experiment No. 3 was carried out at a ratio of hole diameters of 1: 2: 1.4: 4: 2 and a disproportionate ratio of heights.