SU1626066A1 - Utility and processing unit - Google Patents

Abstract

The invention relates to the processing of mineral charges, can be used in the chemical, construction and metallurgical industries and is aimed at intensifying the process and reducing energy costs. The energy technology unit is equipped with a chamber 5 preheating the process material with pipes 8 located therein for the passage of exhaust gases installed above the cyclone chamber 1 in the chamber 3 of convective gas cooling. The lower part of the preheating chamber 5 is made with a blowing grill 12 and nozzles 13 for supplying air. The heat of the exhaust gases through the pipe walls of the preheating chamber is transferred to the fluidized bed of process material, which then enters the cyclone chamber for heat treatment through the connecting pipe. 3 il.

Description

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The invention relates to devices for heat treatment of mineral charges, in particular phosphorites, and can be used in the chemical, construction and metallurgical industries.

The purpose of the invention is to intensify the process and reduce energy costs.

Figure 1 shows the power technology unit, a longitudinal section; in fig. 2 - heating chamber process material, longitudinal section; on fig.Z - the same cross section

The energy technology unit consists of a cyclone chamber 1, a radiation cooling chamber 2 and a convective gas cooling chamber 3. The latter contains the air heater 4 and the heating chamber 5 of the process material. The heating chamber 5 consists of a casing 6 and tube plates 7 in which pipes 8 are fixed, equipped with turbulent inserts 9. The heating chamber 5 is equipped with nozzles 10 for loading the process material into it and a nozzle 11 for introducing it into the cyclone chamber 1. At the bottom of the chamber 5, a blast grill 12 and nozzles 13 are provided for supplying air.

Energy technology unit operates as follows.

In the cyclone chamber 1, heat treatment of the process material takes place. The flue gases from the cyclone chamber 1 are cooled in the radiation cooling chamber 2 and then in the convection cooling chamber 3. In the latter, due to the heat of the exhaust gases, the air going into combustion is heated in the air heater 4 and preliminary

preheating of the process material, which is carried out in the preheating chamber 5. In the latter, the process material is fed through the connections 10, at the same time

air is supplied through the pipes 13 under the blast grill 12. In an organized fluidized bed, heat is transferred from the exhaust gases flowing through pipes 8 through their walls

material. To increase heat transfer from waste gases to the walls of pipes 8, turbulizing inserts 9 are used. After preheating, the process material passes through pipe 11 into the

cyclone chamber 1 for heat treatment.

The technical and economic effect consists in intensifying the process due to a higher temperature of preheating the process material and a reduction in the energy costs of the technological process as compared to the existing ETA in operation.

Claims (1)

Invention Formula An energy technology unit comprising a cyclone chamber with a bath of melt, a chamber of rational and convective cooling of gases, characterized in that, in order to intensify the process and reducing energy costs, it is equipped with a technological material preheating chamber installed in the convection cooling chamber, in which pipes are installed in several rows in height with turbulizing inserts in their cavities and in the lower part of the blast grille with air inlets under it, while the cyclone chamber mounted under the heating chamber and connected to it by a pipe for material. eight i II 1ig-2 Technological ten material EXI EX II Waste gases Air 413 material XSxE-Xg W Exhaust gases