High-temperature flue gas waste heat recovery and dust extraction all-in-one device

Abstract

The invention relates to a high-temperature flue gas waste heat recovery and dust extraction all-in-one device. The high-temperature flue gas waste heat recovery and dust extraction all-in-one device comprises furnace connectors, material filtering beds, a left wind passing unit, a right wind passing unit and a four-way reversing valve, wherein the furnace connectors and the material filtering beds are connected with air flues on the two sides of a high-temperature kiln. Each wind passing unit comprises an upper wind opening, the corresponding low-temperature area material filtering bed, a low-temperature area frame, the corresponding high-temperature area material filtering bed, a high-temperature area frame, the corresponding furnace connector, a dust collection box and an ash outlet with movable partition plates from top to bottom. Each material filtering bed comprises accumulated ceramic balls. The high-temperature flue gas waste heat recovery and dust extraction all-in-one device allows filtration and ash removing to be conducted in a mode that the leftward direction and the rightward direction are switched in a timed mode and filtration and ash removing are periodically and alternately conducted, and allows ash removing and heat absorption to be achieved in a mode that high-temperature flue gas from one side passes through the corresponding material filtering beds from bottom to top so that filtration and heat accumulation can be achieved, and air from the other side reversely blows the corresponding material filtering beds from top to bottom so that ash removing and heat absorption can be achieved. The ash-laden gas flue can be unceasingly filtered, waste heat in the high-temperature gas flue can be unceasingly recovered, meanwhile, function regeneration and fresh air preheating can be simultaneously conducted, cooling and dirt removing of the high-temperature flue gas are achieved, and combustion efficiency is improved.

Description

technical field [0001] The present invention relates to ancillary equipment for industrial furnaces, more specifically, the present invention especially relates to an auxiliary equipment for cleaning and recovering waste heat of industrial furnaces. Background technique [0002] At present, in the industrial field, furnaces are widely used to burn fossil fuels to generate heat to achieve certain production purposes. Industrial furnaces emit flue gas after fuel combustion. Flue gas is a multi-phase aerosol composed of solid, liquid and gaseous substances. The main components is CO 2 、H 2 O, CO, NO and soot, among which soot belongs to particle pollutants, and particle pollutants are one of the important pollutants of the atmosphere, and air pollution has become increasingly serious and directly endangers the comfort and health of the human body, and even the environment on which human beings depend. Environment, harmful components in flue gas need to reduce emissions by imp...

AI Technical Summary

Problems solved by technology

However, this kind of particle layer filter still does not change the traditional particle layer filter. operation, affecting dust removal efficiency

And the existing dust collector does not have waste heat recovery and effective utilization for high-temperature flue gas

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