CS230760B1 - Device for wetting of powdered materials in the production of instant products - Google Patents

Abstract

The purpose of the invention is to prevent excessive material drift and deterioration of the quality of the resulting product when the material is moistened. The stated purpose is achieved by the longitudinal axes of the tubes of at least one row (2), located in the distribution pipe (1), intersect below the plane of the distribution pipe (1) and the longitudinal axes of at least one row (3) intersect above the plane of the distribution pipe (1) or are mutually parallel at infinity. The dried material, which passes in the direction of the vertical axis of the distribution pipe (1), is moistened by steam coming from the row (2) of tubes in the area of intersection (A), (B). The particles reflected from this area pass through a steam curtain, which is formed by steam flowing from the row (3) of tubes.

Description

The present invention relates to a device for wetting powdered materials with water vapor in the production of instant, quick-release, dust-free, granular products, which is an important task of the food, chemical and pharmaceutical industries.

The so-called two-step instant! The wetted particles become sticky and agglomerate.These agglomerates have very good instant properties (i.e. wettability, permeability, descending properties). It is moistened with saturated steam, which immediately after leaving the nozzle condenses in the water mist and moisturizes the processed powder more quickly.In the food industry, these are always thermally sensitive materials in which the use of superheated steam does not come notwithstanding the technical difficulties in its transport from the boiler to the humidifier nozzle, where there are usually long supply pipes from the boiler room to the instantizer, intermittent operation and relatively low steam extraction. So far used humidifiers are made of straight or coiled pipe, which has their length a number of small openings through which wet steam emits, or with pipes with one or more rows of tubes inserted (A No.186 471). The nozzle types used so far, where the axes of the steam supply pipes intersect below the plane in which the pipe lies, do not wet all The material to be dispensed, or at the point of collision of the steam jets, generates a local overpressure which does not let all the material to be dispensed into the actual humidification space. Material particles which do not pass through the humidification space and are not sufficiently moistened are not agglomerated.

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This either leads to a deterioration of the product quality * or to a part of the oido separator.

The above disadvantages are overcome by a device according to the invention consisting of a manifold in which at least two rows of pipes are arranged perpendicular to its longitudinal axis, characterized in that the longitudinal axes of the pipes of at least one intersect below the plane of the manifold and the longitudinal axis of at least one The lines intersect above or are parallel to one another. The actual manifold is coiled in a plane or space.

The novel effect achieved by the device according to the invention is characterized in that particles of material which do not pass through the humidifying space and are not sufficiently moistened and agglomerated are forced to pass through a vapor orifice formed by steam escaping from tubes whose longitudinal axes intersect above the plane. distribution pipes or are parallel to each other.

This does not deteriorate the product and particulate debris into the separator *

1 is a bottom view and FIG. 2 is a longitudinal cross-sectional view of a tubular manifold. FIG.

The dampening device consists of a distribution tube 1 of circular shape on whose longitudinal axis two rows of tubes 2 are perpendicularly arranged that their longitudinal axes intersect below the plane in which the distribution tube 1 lies, intersections A, B and one row of 2 tubes whose longitudinal the axes intersect above this plane, intersection C, or are parallel to each other. At the opposite end. a drainage pipe 6 is connected to the manifold before the steam inlet. The dried material passing in the direction of the vertical axis of the manifold 1 is humidified by the steam coming from both rows 2 of the tubes at the intersection area A, B. The particles reflected from this area pass through a vapor orifice which is formed by the effluent

230 760

Ml steam from a series of g tubes. The steam enters the manifold in the direction of the arrow K, the steam which condenses in the manifold 1 is discharged through the drainage pipe 4,

Claims (2)

SUBJECT OF THE INVENTION 230 780 An apparatus for wetting powdered materials in the manufacture of instant products comprising a manifold in which at least two rows of tubes are perpendicular to the longitudinal axis of the manifold, characterized in that the longitudinal axes of the tubes of at least one row (2) intersect below the plane of the manifold ( 1) and the longitudinal axes of at least one row (3) intersect above the plane of the manifold (1) or are parallel to each other. Device according to claim 1, characterized in that the manifold (1) is coiled in a plane or space.