SU505864A1 - Installation for heat treatment of bulk materials - Google Patents

Description

one

The invention relates to a technique for heat treatment, in particular drying, bulk materials, and can find application in the chemical, roipiHO, ore, metallurgical and other industries.

There are known installations that contain a vibrotransporter with loading and unloading devices, gas supply and discharge pipes, and nozzles.

The purpose of the proposal is to intensify the process and reduce entrainment.

This is achieved by the fact that the vibroconveyor is made in the form of a chamber with reinforced base and cover in an alternating pattern, consisting of perforated vertical partitions forming sections, and adjacent partitions reinforced on the base, connected by inclined bottoms. The chamber and partitions can be made cylindrical, and the sections are divided by radial jumpers into sector channels, internal and external, to each. The external channel is connected in the upper part of the adjacent section with the internal channel by means of pouring windows with a bevelled tray.

FIG. 1 shows schematically the proposed installation, a longitudinal section; in fig. 2 is the same, in plan view (with partial section); in fig. 3 and 4 is a variant of the installation (vertical and horizontal sections, respectively); in fig. 5 is a diagram of the movement of bulk material in the installation sections.

The installation comprises a chamber 1 with a drive unit 2, elastic elements 3, a loading and unloading device 5, a lawn supply 6 and a discharge pipe 7, vertical perforated partitions 8, forming

sections 9, and pouring holes 10, inclined bottoms 11, radial lintels 12, bevelled trays 13 and thermal insulation 14. The installation works as follows. Thermally processed material is fed into chamber 1 installed on elastic elements 3 through loading device 4 and vertical vibrations are communicated to it by means of vibrating drive 2. The material is moved in chamber 1, successively passing

through sections 9 formed by vertical perforated partitions 8, is blown in the transverse direction by a coolant flowing through the gas supplying nozzle 6 and exiting through the outlet

pipe 7, and is discharged through the discharge device 5. Due to the alternating fastening of the partitions 8 to the base and the lid of the chamber 1 and inclined bottoms 11, the material in sections 9 under the influence of vibration

moves alternately in the downward and in the outward