Aluminum melting furnace flue gas dedusting and desulfurization system
An aluminum melting furnace and flue gas technology, which is applied in the field of flue gas dust removal and desulfurization systems of aluminum melting furnaces, can solve the problems of high desulfurization cost and low efficiency, and achieve the effects of improving desulfurization efficiency, reducing operating costs and improving desulfurization efficiency.
Inactive Publication Date: 2017-10-20
HEFEI TIANXIANG ENVIROMENT PROJECT
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Problems solved by technology
[0005] The invention provides a flue gas dedusting and desulfurization system of an aluminum melting furnace, which solves the problems of high cost and low efficiency of the existing dry desulfurization
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[0022] The following clearly and completely describes the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0023] Such as figure 1 with figure 2 As shown, the present embodiment provides an aluminum melting furnace flue gas dedusting and desulfurization system, comprising an aluminum melting furnace 1, a dedusting and desulfurizing filter 2, a heat exchange tank 3, an induced draft fan 4 and a chimney 5 connected in sequence, the dedusting and desulfurizing The filter 2 is provided with a plurality of filter beds 6, and the filter beds 6 are sequentially provided with an adsorbent layer 6-1, a coarse particle layer 6-2, a fine particle...
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Abstract
The invention discloses an aluminum melting furnace flue gas dedusting and desulfurization system, the aluminum melting furnace flue gas dedusting and desulfurization system comprises an aluminum melting furnace, a desulfurization dedusting filter, a heat water exchange tank, a draught fan and a chimney which are in turn connected, the desulfurization dedusting filter is provided with a plurality of filter beds, the filter bed is provided with an adsorption agent layer, a coarse granular layer, a fine particle layer and a catalyst layer in turn from up to down along the flue gas passing-through direction, an adsorption agent of the adsorption agent layer is prepared from the following method: adding fly ash, calcium hydroxide, sodium hydroxide and aluminum oxide in the weight ratio of 20:15-25:0.5-1.5:1-3 into water for water bath heating to 70 to 80 DEG C for hydration for 10-14 hours, then filtering, putting a solid into an oven at 200 DEG C, heating and drying for 2 hours, and grinding to obtain the adsorption agent. After flue gas of the aluminum melting furnace passes through the system, the dust removal rate is 98.8%, and the desulfurization efficiency is 80% or above at 700-850 DEG C.
Description
technical field [0001] The invention relates to the technical field of flue gas desulfurization environmental protection, in particular to a dust removal and desulfurization system for flue gas of an aluminum melting furnace. Background technique [0002] At present and for a long period of time in the future, China's energy structure is dominated by coal, and the flue gas emitted by coal-fired boilers contains a large amount of SO 2 , has caused great harm to the pollution of the environment. [0003] SO 2 Soaring emissions make most cities SO 2 The concentration is at a high pollution level. SO 2 The increase in emissions has led to an abnormally rapid increase in acid rain in China. Severe acid rain and fragile ecosystems have caused serious economic losses in my country. The direct economic losses caused by acid rain pollution to forests and crops have reached tens of billions of yuan. If not strictly controlled, my country's SO 2 Emissions will continue to increas...
Claims
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Patent Timeline
Login to View More IPC IPC(8): B01D53/50B01D53/82B01D46/30
CPCB01D46/30B01D53/508B01D2251/404B01D2251/604B01D2251/602B01D2258/0283B01D46/64
Inventor 周玉祥
Owner HEFEI TIANXIANG ENVIROMENT PROJECT