SU564497A1 - Installation for treating bulk materials - Google Patents

Description

one

This invention relates to a technique and technology for the heat treatment of bulk materials, such as grains.

Installations for the heat treatment of bulk materials are known, for example, heating and cooling the grain, comprising a horizontal tray with a perforated bottom divided by longitudinal partitions into sections G

A disadvantage of the known installations is their complexity, low thermal efficiency and slow heat treatment process.

The aim of the invention is to accelerate the heat treatment process.

This is achieved by the fact that the longitudinal partitions dividing the horizontal tray with a perforated bottom into sections are arranged vertically and made of thermally conductive material, and the adjacent sections are connected to bunkers with material having different temperatures, and the bottoms of each section at the exit section of the material are plugged for create backwater.

This increases the proportion of contact heat transfer and allows you to utilize the heat released by the cooled material. In FIG. 1 shows a general view of the installation; in fig. 2 - location of heat exchange sections in the plan; in fig. 3 - section A-A of FIG. 2; in fig. 4 - section bb of figure 2.

The horizontal tray 1, having a perforated bottom 2, is divided by vertical partitions 3 made of thermally conductive material into sections 4 for transporting the heated material and adjacent sections 5 for transporting cold material. The source blow 6 delivers air under the perforated bottom of the tray through the air inlet duct 7.

The perforated bottoms of each section at the exit section of the material have a muffled UC and 8.

The bunker 9 with self-leaks I 10, having adjusting valves 11, is intended for heated material, the bunker 12 is for cold material.

Cleaning the xsaterial is done by convex rams 13 and 14.

 works as follows. The heated material from the hopper 9 enters the B section 4 and is transported through it under the influence of air jets entering from the holes of the perforated bottom in the direction of the bed movement. On the contrary, these heated material flows in adjacent sections 5 will mix cold material coming from bunker 12. As a result of convective, but mainly conductive heat exchange through vertical partitions dividing the tray into sections, the bulk material in sections 4 is cooled, and in the sections adjacent to them 5 is heated. After leaving the plant, the cooled material from sections 4 is transported by conveyor 13 to the storage location, and the heated material from sections 5 is fed to suzhy or recycled. Stabilization of the plant performance and protection of the perforated section bottoms from nakedness is ensured by the presence of filled sections 8, the length of which can vary, which makes it possible to vary the height of the layer and makes it possible to regulate the process of heat exchange in wide areas; lah. Fore. Myfta of the invention. A plant for heat treatment of suction materials, for example, heating and cooling the grain, comprising a horizontal tray with a perforated bottom divided by longitudinal partitions into sections, characterized in that, in order to accelerate the process of heat treatment, the partitions are arranged vertically and made of heat conducting material and adjacent sections are connected to bins with material having different temperatures, and the bottoms of each section at the material outlet of the material are plugged to create a backwater. ation, received into consideration in the examination: 1. Blokhin P, V. Aerogravitatsioniy transport. M ,. Energie, 1974 s. 21. У т 5Т Hot material

S64497 J F Cold material

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