Desulfurized gypsum calcining device

Abstract

The invention belongs to the technical field of industrial solid waste calcining devices, and particularly relates to a desulfurized gypsum calcining device which comprises a shell, a motor, a calcining device and a temperature sensor, wherein the top of the shell is fixedly provided with an upper cover through bolts, and the bottom of the side wall of the shell is fixedly provided with a discharge port; a control valve is in threaded connection with the end of the discharging port, a feeding hopper is installed on one side of the top of the upper cover in a penetrating mode, the top of the upper cover is connected with the motor in a penetrating mode, a rotating rod is fixedly installed at the bottom of the motor through a coupler, and bearings are clamped to the upper end and the lower end of the rotating rod. A stirring assemblies are evenly and fixedly installed in the middle of the rotating rod, the calcining device is fixedly installed on the inner side wall of the shell, the calcining device comprises a heating wire and a heat conduction plate, and the heating wire is located on the inner wall of the heat conduction plate. The device achieves uniform stirring of gypsum, thecalcining quality is guaranteed, and the calcining efficiency is improved. In addition, a comprehensive effet of saving resource is achieved.

Description

technical field [0001] The invention relates to the technical field of industrial solid waste calcining devices, in particular to a desulfurized gypsum calcining device. Background technique [0002] Desulfurization gypsum is also known as flue gas desulfurization gypsum, sulfur gypsum or FGD gypsum. The main component is the same as natural gypsum, calcium sulfate dihydrate CaSO 4 2H 2 O, content ≥ 93%. Desulfurization gypsum is a by-product of the FGD process, a technology that uses lime-limestone to recover sulfur dioxide from coal or oil flue gas. The technology is to grind the lime-limestone into a slurry, so that the SO-containing 2 The flue gas passes through the slurry scrubber to remove SO 2 . Lime slurry and SO 2 The reaction produces calcium sulfate and calcium sulfite, and the calcium sulfite is oxidized and converted into calcium sulfate to obtain industrial by-product gypsum, called desulfurized gypsum, which is widely used in building materials and other...

AI Technical Summary

Problems solved by technology

[0003] The desulfurization gypsum calcination device in the prior art does not burn uniformly during the calcination process, and the gypsum cannot be stirred evenly. At the same time, the calcination process is easy to cause waste of resources. Therefore, it is necessary to develop a desulfurization gypsum calcination device.

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