SU1717203A1 - Device for granulation of liquid materials - Google Patents

Abstract

The invention relates to a granulation technique and allows improving the quality of a product and increasing reliability and convenience in operation. A device for granulating liquid materials includes a rotating body with a perforated side wall, a distribution plate fixedly mounted in the body and partitioning the cavity of the partition wall, a ring fixedly mounted on the side wall of the body above the perforation, and a frusto-conical shell installed with a gap in the ring and fixedly fixed upper large base, as well as the blades, rigidly mounted on the lower surface of the ring and deflected relative to the side with Enki in the direction opposite to the rotation of the wall, and in the shell opposite the blade ring is provided with through slots. 2 Il.

Description

cl

WITH

The invention relates to a technique for granulating liquid materials by spraying them and cooling the droplets in the cavity of the granulation tower.

The purpose of the invention is to improve product quality and increase reliability and ease of operation.

Fig. 1 shows a granulating device, a slit; figure 2 - section aa in figure 1.

A device for granulating liquid materials includes a rotating body 1 with a perforated side wall, mounted on the lower end of the shaft 2 by nuts 3, the upper end of which is connected to a drive (not shown) of the rotational movement. In the upper part of the housing 1, the feed nozzle 4 is fixedly mounted, at the outlet of which a distribution plate 5 is placed, made in the form of a perforated plate. On the lower side of the distribution plate 5, partition walls 6 of the housing 1 are fixed, for example, in the form of open truncated cones having a smaller diameter in the upper part and arranged concentrically relative to the axis of rotation of the housing 1. The lower ends of the cones (partitions) 6 are located horizontal planes near the perforated wall of the housing 1 and form with it a gap S.

The rotating body 1 has in its upper part a flange 7 in which the ring 8 of the mechanical seal is fixed. Over the ring 8 on the supply nozzle 4, another ring 9 of the mechanical seal is fixedly fixed. The supply nozzle 4 has a connecting flange 10, which by means of a gasket 11 is attached to the flange 12 of the fixed receiving chamber 13.

to: with and

Inside the rotating housing 1 on the side wall of the housing, a ring 14 is fixedly mounted above the perforations with blades 15 rigidly fixed on its lower surface, deflected relative to the side wall of the housing 1 in the direction opposite to the rotation of this wall. A ring 16, made in the form of a truncated cone, is fixed in the ring 14 with a gap, and fixedly fixed by the upper large base under the distributor plate 5 on the supply nozzle 4. In the shell 16 opposite to the blades 15 of the ring 14, through grooves 17 are made.

The device works as follows.

The shaft 2 and the body 1 with the perforated side wall are driven in rotation from a drive (not shown). The granulated liquid material is supplied from the receiving chamber 13 to the supply nozzle 4 and to the distribution plate 5. Through the perforations of the distribution plate 5, the granulated liquid material enters the corresponding sections of the housing 1 formed by the bulkheads 6, and in the form of annular laminar flows flows to the side the perforated wall of the housing 1 and is sprayed through the outlet openings of this wall in the form of drops into the cavity of the granulation tower (not shown). In case of overloads on the processed liquid material or partial clogging of the outlet openings, for example, clogging of the outlet openings of the casing with solid insoluble inclusions contained in the working product, an excess of liquid material is formed in the housing 1, which due to the rotation of the wall of the housing 1 rises along it to the upper part of the housing in the direction of the mechanical seal. Rotating with housing 1 ring 14 blades 15 throws liquid material coming to it to shell 16, which partially enters through through grooves 17 into this shell 16, and partially flows down along the inclined wall of shell 16. Allocated by blades 15 of ring 14 from the side wall housing 1, the liquid material enters the lower part of the upper section of the device and is re-directed as a film to the rotating perforated side wall of the housing 1 for dispersion, together with the granulated material newly arriving from above. The shell 16 acts as a flow guide.

liquid material, and also prevents the ingress of liquid material into the space above the ring 4, i.e. to the mechanical seal formed by the rings 8 and 9. At the same time, leakage of the liquid material through the gap between the rings 8 and 9 of the mechanical seal is practically not observed even with a significant filling of the device case with this material. Reducing the leakage of liquid material through the gap between the rings 8 and 9 of the mechanical seal causes a decrease in the retour of the finished granulated product at the exit (5%), increases the uniformity of the composition of the product. Restricting the access of liquid material to the mechanical seal significantly reduces wear on the rings 8 and 9 when working with liquid materials containing abrasive inclusions, which increases reliability in operation and reduces energy consumption. This also reduces the requirements for the accuracy of the gap between the rings of the mechanical seal, which is always difficult under industrial conditions. When working with melts, the formation of stationary parts of the device of icicles and other deposits of solid product is reduced, which facilitates the maintenance of the device, reduces the output retur and increases the uniformity in space. In addition, in all cases, the service life of the device is increased by 1.5-2 times before cleaning, which also increases the operational reliability.

Claims (1)

Apparatus of the Invention A device for granulating liquid materials, comprising a rotating body with a perforated side wall, a distribution plate fixedly mounted in the body and partitioning the cavity of the partition body, characterized in that, in order to improve product quality and increase reliability and convenience in operation, it is provided with a ring, mounted on the side wall of the casing above the perforation, and a shell made in the form of a truncated cone, installed with a gap in the ring and fixedly fixed under p spredelitelnoy upper plate .osnovaniem great, while on the lower surface of the ring is rigidly fastened blades deflected relative to the side wall of the housing in the direction opposite to the rotation of the wall, and the shell opposite the blade ring is provided with through slots. / I V / / 7 Aa Fm.2