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

A waste heat recovery and high-temperature flue gas technology, applied in waste heat treatment, lighting and heating equipment, chemical instruments and methods, etc., can solve problems such as unstable operation, difficult dust cleaning, and affecting dust removal efficiency, so as to improve combustion efficiency and reduce Substance pollution, large heat capacity effect

Active Publication Date: 2014-03-26
宝武集团中南钢铁有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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

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Embodiment Construction

[0038] Such as figure 1 , 2 , which are schematic diagrams of the structure of the integrated device embodiment of the present invention under different switching conditions. An embodiment of an integrated device for recovering high-temperature flue gas waste heat and dust removal according to the present invention, which includes a furnace interface 27 and a filter bed connected to the double-sided gas channels 11 and 12 of a high-temperature kiln (not shown). The filter bed includes a stainless steel filter basket 20 containing ceramic balls (not shown) (see image 3 ), the ceramic balls with particle size of 10-20mm accumulated in the filter material basket 20; the packing density of the ceramic balls in the filter material bed is 1700-2100kg / m3. The integrated device includes two left and right air passing units, and a four-way reversing valve 40 with an electric switching actuator 41 .

[0039] The left and right air passage units include an upper cylinder 201 and a lo...

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PUM

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F27D17/00F23L15/00B01D46/30
CPCY02E20/34
Inventor 罗国民温志红何传超杨宇左才文胡贵平赵华
Owner 宝武集团中南钢铁有限公司
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