Glass kiln flue gas dust removal and denitration integrated process and device

Abstract

The invention provides a glass kiln flue gas dust removal and denitration integrated process. According to the process, a high-temperature dust removal device and a denitration reaction device do not need to be independently arranged, and dust removal and denitration are organically combined in one device; flue gas is subjected to the dust removal and then is subjected to the denitration at a high temperature so that dust and nitric oxide can be removed at the same time; a denitration process is carried out in a pure flue gas environment so that a catalyst is prevented from being poisoned and corroded and the service life of the catalyst is prolonged; and a denitration purification device does not need to be independently arranged so that the process is relatively simple. The invention provides a glass kiln flue gas dust removal and denitration integrated device; the dust removal and denitration catalyst is arranged in a dust removal chamber; and the device has a simple structure and is convenient to mount and replace. The dust removal and the denitration are organically combined in one device and the device is convenient to mount and replace; an SCR reactor device does not need to be independently arranged so that the process is relatively simple and the investment cost and the operation cost of the system are reduced; and the catalyst woks in the pure flue gas environment so that the catalyst is prevented from being poisoned and corroded, and the service life of the catalyst is prolonged.

Description

technical field [0001] The invention relates to glass kiln flue gas dust removal and denitrification technology, in particular to an integrated process of glass kiln flue gas dust removal and denitrification and [0002] its device. Background technique [0003] Selective catalytic reduction (SCR) technology was applied in industrial furnaces and power plant boilers in the 1970s, due to its mature technology and high denitrification (NO X ) rate, has become the mainstream technology of flue gas denitrification in the world. The principle is to reduce the nitrogen oxides (NOx) in the coal-fired flue gas to X ) into nitrogen (N 2 ) and water (H 2 o). [0004] In the existing glass kiln flue gas SCR denitrification technology, due to the NaO, K 2 The concentration of alkali metal oxides such as O is relatively high. In order to avoid catalyst poisoning caused by alkali metals and prolong the service life of the catalyst, the process of dedusting first and then denitrifica...

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Problems solved by technology

Due to the high specific resistance of alkali metal dust at high temperature, it is difficult to charge, and at the same time, the alkali metal dust is relatively viscous and difficult to remove from the plate. It is difficult for electrostatic precipitators to achieve a high dust removal effect, resulting in denitrification catalysts. Poisoning, abrasion , the service life is reduced, and the denitrification operation cost is increased

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