SU1548630A1 - Installation for drying foodstuffs in a layer of solid bodies - Google Patents

Abstract

The invention relates to the field of drying liquid food products and can be used in the food, chemical and other sectors of the industry. The installation contains a chamber 1 consisting of two parts 2, 3, the upper of which is made in the form of a truncated cone, facing downwards with a large base, and the bottom in the form of a horizontally placed toroid having a central zone 4 and a peripheral torus zone. A hot coolant is supplied to the bottom part 3 through tangential nozzles, and a liquid product is fed through the nozzles, which is sprayed onto the surface of the inert bodies 6 and stirred. Swirling movement is created using a spiral insert 5. 4 Il.

Description

Part 2 through the pipe 13, the spent heat carrier together with the cooled dry product is sent to the cyclone T, where it is discharged.

The invention allows to significantly intensify heat and mass transfer.

The invention relates to a technique for drying liquid products in a circulating layer of inert bodies and can be used in the food, chemical and other industries.

The aim of the invention is to intensify heat and mass transfer.

FIG. 1 shows the installation, longitudinal section; in fig. 2 shows section A-A in FIG. one; in FIG. 3, node I in FIG. 2; in fig. k - nozzle.

The installation comprises a chamber 1, an upper part 2, a lower part 3} a central zone C, a spiral insert 5, 15 a chamber equipped with an inert body 6 with a sprayer, a curved gas

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Claims (1)

Invention Formula Installation for drying food in the layer of inert bodies, containing the upper part of which is made in the form of a truncated cone, and the lower part is in the form of a horizontally placed toroid, having a central zone in which a dispenser is installed above the heat transfer pipe, and a peripheral torus zone filled with with inert bodies, in order to intensify heat and mass transfer, the truncated cone of the upper part faces a large base downwards; a curvilinear gas distribution grid is installed above the dispenser; In the torus zone there are additionally connected tangential heat carrier supply nozzles with product nozzles embedded in them in the form of nozzles, the upper and lower parts of the chamber communicating with each other through a partially perforated torus wall, and in the latter there is a spiral insert of variable cross section with a maximum value in the zone placement of tangential nozzles for supplying coolant. distribution grid 7, distributing device 8, heat carrier supply pipe 9, tangential heat carrier supply pipes 10, nozzles 11, partially perforated torus wall 12, outlet pipe 13, cyclone I The installation works as follows. Hot coolant is supplied to the lower toroidal part 3 of the chamber 1 through tangential nozzles 10, and through the nozzles 11 embedded in the nozzles 10 a liquid product is sprayed onto the surface of inert bodies 6 and intensively mixed with the hot coolant by forming a vortex motion. using a spiral insert 5. The product dried on the surface of inert bodies 6 through the partially perforated wall 12 of the toroidal lower part 3 enters the upper cooling part 2, into which through the dispensing device 8 and rivolineynuyu gas distribution grid 7, the cool air is supplied for cooling the dried product. From the top cooler Part 2 through the pipe 13, the spent coolant, together with the cooled dry product, is sent to the cyclone T, where it is discharged. The invention allows to significantly intensify heat and mass transfer. spraying chamber equipped with a spray Invention Formula A plant for drying foodstuffs in a layer of inert bodies, comprising a chamber equipped with a spray product and consisting of two parts, the top of which is made in the form of a truncated cone, and the bottom - in the form of a horizontally placed toroid, which has a central zone in which a dispenser is installed above the coolant supply pipe, and a peripheral torus zone filled with inert bodies , characterized in that, in order to intensify heat and mass transfer, the truncated cone of the upper part faces a large base downwards; a curved gas distribution grid is installed above the dispenser, and the periphery In the torus zone, tangential nozzles of the coolant supply with built-in nozzles of the product are additionally connected, the upper and lower parts of the chamber communicating with each other through a partially perforated torus wall, and in the latter there is a spiral insert of variable cross section with the maximum value in the placement area tangential nozzle supply of heat transfer fluid. YU The heat carrier of FIG. 2 Fig.Z i Liquid product figure 1