Airflow desulphurization gypsum calcination system

Abstract

The invention discloses an airflow desulphurization gypsum calcination system, which comprises a feeding storage system, a quantitative reclaiming system, a scattering machine, a post-calcination device, an electric dust collector, a modifying machine and a heat source stabilizing system, wherein the feeding storage system is used for delivering and temporarily storing the desulphurization gypsumraw materials; the quantitative reclaiming system is used for quantitatively measuring the desulphurization gypsum raw material which is conveyed by the feeding storage system and for sending the measured desulphurization gypsum raw material to the scattering machine; the scattering machine is used for scattering the desulphurization gypsum raw material of a given quantity which is sent by the quantitative reclaiming system to be dried and calcined in the high-temperature smoke; the electric dust collector is used for separating the desulphurization gypsum which is adequately burned from the smoke; the modifying machine is used for modifying the desulphurization gypsum after the calcinations which is separated from the electric dust collector and make the desulphurization gypsum into the building gypsum - a raw material which is suitable for the production of the gypsum board; and the heat source stabilizing system is used for supplying a stable heat source and for adequately utilizing the surplus heat of the system.

Description

technical field [0001] The invention relates to a gypsum calcining system, in particular to a desulfurized gypsum calcining system used for gypsum board production. Background technique [0002] The calcination of desulfurized gypsum currently has many forms of calcination. Including steam rotary kiln calcination, wok calcination, fluidized fluidized furnace calcination, flue gas rotary kiln calcination, peters mill calcination, air flow calcination, etc. The above-mentioned calcination devices either have poor calcination quality, or complex equipment with high investment or high energy consumption. The present invention has the characteristics of low energy consumption, low investment, good calcining quality and suitable for gypsum board production. [0003] Patent application 200610068771.x discloses a desulfurization gypsum calcination and drying process, which mainly includes five parts: heat source, raw material transportation, material drying and crushing, dust remov...

AI Technical Summary

Problems solved by technology

The patent application still has the following problems: 1) There is no material metering device, no heat source stable supply device, and no post-calcination device, resulting in large fluctuations in system operation and unstable calcination quality; 2) Cyclone dust collector is used And the bag dust collection system has high resistance, and the power consumption of the fan is high; 3) The waste heat recovery of exhaust gas by heat exchanger is poor in reliability

Images