SU1374015A1 - Installation for thermal treatment of loose materials - Google Patents

Abstract

Invention m. used in the chemical industry. The goal: the invention is to reduce the size of the installation. For this, the cooler is separated from the drying chamber by a threshold of coils 6, the pipes of which are installed closely. The side walls of the cooler are made in the form of collectors. The hot material, in contact with the pipes of the coil 6, is cooled and a dense layer (in order to avoid suction) moves to the discharge pipe 10. 2 Il.

Description

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The invention relates to devices for the heat treatment of bulk materials and may find application in the chemical industry.

The purpose of the invention is the reduction of hectares of barites.

Figure 1 presents the scheme of the described installation; in FIG. 2, the same plan view.

The plant for heat treatment of bulk materials contains a heat carrier supply pipe 1, a drying chamber 2 in which a gas distribution grid 3 is installed, which divides the chamber into a sublattice and superlattice spaces. In the above-grate part of the drying chamber there is a pipe 4 for supplying the material being dried, in the upper part of the body there is a pipe 5 for draining the spent heat carrier and moisture vapor. In the perimeter cooler, coils 6 are installed along the perimeter, into which a cooling agent (water) is supplied through the pipe 7 and out through the pipe 8. The cooler has a wall 9, which is installed with a slope to create a layer-type shutter during operation in order to prevent air from leaking. In the lower part of the case has a pipe 10 unloading the finished product. The cooling agent, mainly in the form of water, is first supplied to the panel 11 and then passes into the coil pipes.

Installation for heat treatment of bulk materials is as follows.

Loose wet material, for example potassium chloride 8

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10% is fed through the pipe 4 into the super-lattice space of the drying chamber, and the heat carrier in the form of flue gases with temperature through the pipe 1 is under the grid. The material on the grate is fluidized by a coolant and dried in the superlattice space of the chamber in a fluidized bed. The spent coolant and moisture vapor through the pipe 5 is received for cleaning. The dried material flows through the threshold formed by the coil tubes into the cooler. The hot material, in contact with the pipes of the coil 6, is cooled and a dense layer (in order to avoid suction) moves to the discharge pipe 10. The heat of the product is transferred to a cooling agent.

This water, as a result, the water in the pipes can be heated to 90-95 ° C and flow, for example, into the heat supply network of the plant, which increases the thermal efficiency of the installation.

Claims (1)

Invention Formula A plant for heat treatment of bulk materials, containing successively connected drying chambers with inlet nozzles, heating medium outlet and product loading, and a rectangular section cooler, equipped with coil-like partitions connected to collectors, which in order to reduce overall dimensions chamber drying threshold of coils, pipes which are installed close to, and the side walls of the cooler are made in the form of collectors. FIG. 2