SU146256A1 - Continuous flow apparatus for making baffles from sugar solutions - Google Patents

Description

Continuous apparatuses are known for obtaining a mash from sugar solutions, consisting of a horizontal trough-shaped body, inside of which are mounted on the shaft disk partitions in the form of sectors with slots, forming a series of sections and provided around the periphery with scraper to prevent precipitation of crystals on the bottom and walls enclosures. Also known are apparatuses with coolant circulation inside hollow partitions forming sections, as well as apparatuses with supply of heated air into the superfluous space.

A feature of the proposed apparatus is that it employs in aggregate disk hollow or solid, alternately not reaching to the bottom, vertically arranged partitions connected by pipe lengths; heated air nozzles are located on both sides of the lid against each section and are connected to a common heating manifold.

The partitions separating the apparatus can be made of separate hollow and a half turns of screw sections, in which the upper ends of one are connected to the lower ends of adjacent pipes. An apparatus whose construction is simpler allows one to obtain a massecuite without boiling it.

FIG. 1 shows a diagram of the apparatus in two projections; in fig. 2 is a diagram of the apparatus in two projections with a slightly modified structure.

Jso 146256

Inside the trough-shaped horizontal body / with a cover 2 of a semicircular shape, there is a mixing device consisting of shaft 3 and discs 4 mounted on the shaft. The disks 4 have cutouts 5 in the form of sectors for moving the massecuite along the machine. For greater rigidity, the disks are fastened together along the periphery by straps 6, which simultaneously serve as scrapers, preventing the deposition of crystals on the bottom and walls of the housing. Fittings 7 and 5 are located on the cover for supplying hot air and discharging exhaust air. Hot air is supplied and exhaust air is withdrawn by a fan unit with a heater.

The sugar solution is supplied in a continuous stream to the head of the apparatus through fittings 9 placed on the lid. A milling staff of the apparatus is selected through a gate 10 in the tail section of the apparatus. The level of the massecuite B is slightly higher than the shaft Under the effect of the level difference, the uffedo mass moves uniformly from the head of the apparatus to the tail. Contacting rotating discs, the massecuite is entrained in the air space where hot air is blown by the fan. In this case, moisture evaporates from the exposed surface of the masonry in a thin moving layer.

The gradual movement of the massecuite along the apparatus is accompanied by an increase in the content of the crystalline mass in it. After exiting the apparatus, the massecuite goes directly to the centrifuges or is pretreated in the crystallizers. The process of evaporation of moisture from the massecuite is regulated by changing the amount of air supplied and its parameters (temperature, moisture content).

If it is necessary to intensify the evaporation of moisture, a second version of the device design is provided with heating the massecuite with steam or water. For this purpose, instead of disks 4 on shaft 3, install hollow AND disks, which are connected by pipes 12 for the subsequent transfer of heat transfer medium from disk to disk. Hollow disks // have notches 5, similar to the notches in disks 4, for passing the massecuite. In addition, for heating the massecuite body is equipped with a casing 13.

The coolant is supplied to heat the discs and condensate is discharged through the gland seals 14 and 15. The coolant is supplied to the casing 13 and condensate is withdrawn from it by means of unions / 5 and 17.

To obtain a higher crystal content massecuite, a third design variant of the apparatus is provided, which differs from the second only in the shape of hollow discs, made as separate hollow coils in the plot auger sections 18, in which the upper end of one section is connected to the lower end of the adjacent section at relief pipe 19.

Subject invention

. A continuous apparatus for obtaining massecuite and other crystallizing masses, for example, refined porridge, from sugar solutions in a saturated or somewhat supersaturated (, 05-, 1) state at a temperature of 75-90 ° C, including a horizontally mounted trough-shaped body, a semi-cylindrical cover, partitions rigidly fixed to the rotating shaft, dividing the apparatus into sections and a device for supplying heated air to the superfluous space, characterized in that, in order to obtain massecuite without boiling it, to intensify Processes and simplification

constructions, in it collectively applied disk hollow or solid alternately vertical bottom partitions not reaching the bottom, connected by pipe lengths; nozzles for heated air are located on both sides of the lid against each section and are connected to a common heating manifold.

2. An apparatus according to claim 1, characterized in that the separation conductor separating it and is made of separate hollow and a half turns screw aperture x sections, the upper ends of the tunic are connected to the lower ends of adjacent pipes.

- 3 - № 146256

P1 / ZLS 1.